diff --git a/CHANGES.md b/CHANGES.md
index 1dfa5043a..a9e681101 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -3,6 +3,60 @@ twilio-python Changelog
 
 Here you can see the full list of changes between each twilio-python release.
 
+[2024-07-02] Version 9.2.3
+--------------------------
+**Intelligence**
+- Deprecate account flag api.twilio-intelligence.v2
+
+
+[2024-06-27] Version 9.2.2
+--------------------------
+**Api**
+- Add `transcription` resource
+
+**Flex**
+- Changed mount name for flex_team v2 api
+
+**Intelligence**
+- Add `X-Rate-Limit-Limit`, `X-Rate-Limit-Remaining`, and `X-Rate-Limit-Config` as Response Headers to Operator resources
+
+**Numbers**
+- Added include_constraints query parameter to the Regulations API
+
+**Twiml**
+- Add support for `<Transcription>` noun
+
+
+[2024-06-21] Version 9.2.1
+--------------------------
+**Api**
+- Add beta feature request managed cert
+
+
+[2024-06-18] Version 9.2.0
+--------------------------
+**Library - Chore**
+- [PR #796](https://github.com/twilio/twilio-python/pull/796): adding contentType in post and put. Thanks to [@tiwarishubham635](https://github.com/tiwarishubham635)!
+
+**Events**
+- Add `status` and `documentation_url` to Event Types
+
+**Lookups**
+- Removed unused `fraud` lookups in V1 only to facilitate rest proxy migration
+
+**Numbers**
+- Add date_created field to the Get Port In Request API
+- Rename the `status_last_time_updated_timestamp` field to `last_updated` in the Get Port In Phone Number API **(breaking change)**
+- Add Rejection reason and rejection reason code to the Get Port In Phone Number API
+- Remove the carrier information from the Portability API
+
+**Proxy**
+- Change property `type` from enum to ienum
+
+**Trusthub**
+- Add skipMessagingUseCase field in compliance_tollfree_inquiry.
+
+
 [2024-06-06] Version 9.1.1
 --------------------------
 **Api**
diff --git a/setup.py b/setup.py
index 9d8084608..8fee9aa18 100644
--- a/setup.py
+++ b/setup.py
@@ -13,7 +13,7 @@
 
 setup(
     name="twilio",
-    version="9.1.1",
+    version="9.2.3",
     description="Twilio API client and TwiML generator",
     author="Twilio",
     help_center="https://www.twilio.com/help/contact",
diff --git a/twilio/__init__.py b/twilio/__init__.py
index 00a5b6d72..bb8cd36f5 100644
--- a/twilio/__init__.py
+++ b/twilio/__init__.py
@@ -1,2 +1,2 @@
-__version_info__ = ("9", "1", "1")
+__version_info__ = ("9", "2", "3")
 __version__ = ".".join(__version_info__)
diff --git a/twilio/base/client_base.py b/twilio/base/client_base.py
index c9e0f9c48..5f17c7540 100644
--- a/twilio/base/client_base.py
+++ b/twilio/base/client_base.py
@@ -184,7 +184,7 @@ def get_headers(
 
         # Types, encodings, etc.
         headers["Accept-Charset"] = "utf-8"
-        if method == "POST" and "Content-Type" not in headers:
+        if (method == "POST" or method == "PUT") and ("Content-Type" not in headers):
             headers["Content-Type"] = "application/x-www-form-urlencoded"
         if "Accept" not in headers:
             headers["Accept"] = "application/json"
diff --git a/twilio/rest/__init__.py b/twilio/rest/__init__.py
index e6e57bafd..6da8da4a1 100644
--- a/twilio/rest/__init__.py
+++ b/twilio/rest/__init__.py
@@ -23,6 +23,7 @@
     from twilio.rest.events import Events
     from twilio.rest.flex_api import FlexApi
     from twilio.rest.frontline_api import FrontlineApi
+    from twilio.rest.preview_iam import PreviewIam
     from twilio.rest.insights import Insights
     from twilio.rest.intelligence import Intelligence
     from twilio.rest.ip_messaging import IpMessaging
@@ -131,6 +132,7 @@ def __init__(
         self._events: Optional["Events"] = None
         self._flex_api: Optional["FlexApi"] = None
         self._frontline_api: Optional["FrontlineApi"] = None
+        self._preview_iam: Optional["PreviewIam"] = None
         self._insights: Optional["Insights"] = None
         self._intelligence: Optional["Intelligence"] = None
         self._ip_messaging: Optional["IpMessaging"] = None
@@ -276,6 +278,19 @@ def frontline_api(self) -> "FrontlineApi":
             self._frontline_api = FrontlineApi(self)
         return self._frontline_api
 
+    @property
+    def preview_iam(self) -> "PreviewIam":
+        """
+        Access the PreviewIam Twilio Domain
+
+        :returns: PreviewIam Twilio Domain
+        """
+        if self._preview_iam is None:
+            from twilio.rest.preview_iam import PreviewIam
+
+            self._preview_iam = PreviewIam(self)
+        return self._preview_iam
+
     @property
     def insights(self) -> "Insights":
         """
diff --git a/twilio/rest/accounts/v1/credential/aws.py b/twilio/rest/accounts/v1/credential/aws.py
index ab7562092..05d92755c 100644
--- a/twilio/rest/accounts/v1/credential/aws.py
+++ b/twilio/rest/accounts/v1/credential/aws.py
@@ -330,11 +330,10 @@ def create(
                 "AccountSid": account_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return AwsInstance(self._version, payload)
@@ -362,11 +361,10 @@ async def create_async(
                 "AccountSid": account_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return AwsInstance(self._version, payload)
diff --git a/twilio/rest/accounts/v1/credential/public_key.py b/twilio/rest/accounts/v1/credential/public_key.py
index 09018d1d2..ec2a1f866 100644
--- a/twilio/rest/accounts/v1/credential/public_key.py
+++ b/twilio/rest/accounts/v1/credential/public_key.py
@@ -334,11 +334,10 @@ def create(
                 "AccountSid": account_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return PublicKeyInstance(self._version, payload)
@@ -366,11 +365,10 @@ async def create_async(
                 "AccountSid": account_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return PublicKeyInstance(self._version, payload)
diff --git a/twilio/rest/accounts/v1/safelist.py b/twilio/rest/accounts/v1/safelist.py
index ce5672cae..51f00fd8c 100644
--- a/twilio/rest/accounts/v1/safelist.py
+++ b/twilio/rest/accounts/v1/safelist.py
@@ -69,11 +69,10 @@ def create(self, phone_number: str) -> SafelistInstance:
                 "PhoneNumber": phone_number,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SafelistInstance(self._version, payload)
@@ -92,11 +91,10 @@ async def create_async(self, phone_number: str) -> SafelistInstance:
                 "PhoneNumber": phone_number,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SafelistInstance(self._version, payload)
@@ -108,13 +106,16 @@ def delete(self, phone_number: Union[str, object] = values.unset) -> bool:
         :param phone_number: The phone number to be removed from SafeList. Phone numbers must be in [E.164 format](https://www.twilio.com/docs/glossary/what-e164).
         :returns: True if delete succeeds, False otherwise
         """
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         params = values.of(
             {
                 "PhoneNumber": phone_number,
             }
         )
-        return self._version.delete(method="DELETE", uri=self._uri, params=params)
+        return self._version.delete(
+            method="DELETE", uri=self._uri, headers=headers, params=params
+        )
 
     async def delete_async(
         self, phone_number: Union[str, object] = values.unset
@@ -125,6 +126,7 @@ async def delete_async(
         :param phone_number: The phone number to be removed from SafeList. Phone numbers must be in [E.164 format](https://www.twilio.com/docs/glossary/what-e164).
         :returns: True if delete succeeds, False otherwise
         """
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         params = values.of(
             {
@@ -132,7 +134,7 @@ async def delete_async(
             }
         )
         return await self._version.delete_async(
-            method="DELETE", uri=self._uri, params=params
+            method="DELETE", uri=self._uri, headers=headers, params=params
         )
 
     def fetch(
@@ -144,6 +146,7 @@ def fetch(
         :param phone_number: The phone number to be fetched from SafeList. Phone numbers must be in [E.164 format](https://www.twilio.com/docs/glossary/what-e164).
         :returns: The fetched SafelistInstance
         """
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         params = values.of(
             {
@@ -151,7 +154,9 @@ def fetch(
             }
         )
 
-        payload = self._version.fetch(method="GET", uri=self._uri, params=params)
+        payload = self._version.fetch(
+            method="GET", uri=self._uri, headers=headers, params=params
+        )
 
         return SafelistInstance(self._version, payload)
 
@@ -164,6 +169,7 @@ async def fetch_async(
         :param phone_number: The phone number to be fetched from SafeList. Phone numbers must be in [E.164 format](https://www.twilio.com/docs/glossary/what-e164).
         :returns: The fetched SafelistInstance
         """
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         params = values.of(
             {
@@ -172,7 +178,7 @@ async def fetch_async(
         )
 
         payload = await self._version.fetch_async(
-            method="GET", uri=self._uri, params=params
+            method="GET", uri=self._uri, headers=headers, params=params
         )
 
         return SafelistInstance(self._version, payload)
diff --git a/twilio/rest/api/v2010/account/__init__.py b/twilio/rest/api/v2010/account/__init__.py
index adf2458f2..dc0c53c9c 100644
--- a/twilio/rest/api/v2010/account/__init__.py
+++ b/twilio/rest/api/v2010/account/__init__.py
@@ -830,11 +830,10 @@ def create(
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return AccountInstance(self._version, payload)
@@ -855,11 +854,10 @@ async def create_async(
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return AccountInstance(self._version, payload)
diff --git a/twilio/rest/api/v2010/account/address/__init__.py b/twilio/rest/api/v2010/account/address/__init__.py
index fd7774710..36ee8f223 100644
--- a/twilio/rest/api/v2010/account/address/__init__.py
+++ b/twilio/rest/api/v2010/account/address/__init__.py
@@ -529,11 +529,10 @@ def create(
                 "StreetSecondary": street_secondary,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return AddressInstance(
@@ -584,11 +583,10 @@ async def create_async(
                 "StreetSecondary": street_secondary,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return AddressInstance(
diff --git a/twilio/rest/api/v2010/account/application.py b/twilio/rest/api/v2010/account/application.py
index a3b11f028..d1e50c5f0 100644
--- a/twilio/rest/api/v2010/account/application.py
+++ b/twilio/rest/api/v2010/account/application.py
@@ -636,11 +636,10 @@ def create(
                 ),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ApplicationInstance(
@@ -713,11 +712,10 @@ async def create_async(
                 ),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ApplicationInstance(
diff --git a/twilio/rest/api/v2010/account/balance.py b/twilio/rest/api/v2010/account/balance.py
index 0e90cdaae..97c7b3303 100644
--- a/twilio/rest/api/v2010/account/balance.py
+++ b/twilio/rest/api/v2010/account/balance.py
@@ -13,6 +13,7 @@
 """
 
 from typing import Any, Dict, Optional
+from twilio.base import values
 
 from twilio.base.instance_resource import InstanceResource
 from twilio.base.list_resource import ListResource
@@ -72,8 +73,9 @@ def fetch(self) -> BalanceInstance:
 
         :returns: The fetched BalanceInstance
         """
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
-        payload = self._version.fetch(method="GET", uri=self._uri)
+        payload = self._version.fetch(method="GET", uri=self._uri, headers=headers)
 
         return BalanceInstance(
             self._version, payload, account_sid=self._solution["account_sid"]
@@ -86,8 +88,11 @@ async def fetch_async(self) -> BalanceInstance:
 
         :returns: The fetched BalanceInstance
         """
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
-        payload = await self._version.fetch_async(method="GET", uri=self._uri)
+        payload = await self._version.fetch_async(
+            method="GET", uri=self._uri, headers=headers
+        )
 
         return BalanceInstance(
             self._version, payload, account_sid=self._solution["account_sid"]
diff --git a/twilio/rest/api/v2010/account/call/__init__.py b/twilio/rest/api/v2010/account/call/__init__.py
index 2ba343f56..ff9e98b09 100644
--- a/twilio/rest/api/v2010/account/call/__init__.py
+++ b/twilio/rest/api/v2010/account/call/__init__.py
@@ -26,6 +26,7 @@
 from twilio.rest.api.v2010.account.call.recording import RecordingList
 from twilio.rest.api.v2010.account.call.siprec import SiprecList
 from twilio.rest.api.v2010.account.call.stream import StreamList
+from twilio.rest.api.v2010.account.call.transcription import TranscriptionList
 from twilio.rest.api.v2010.account.call.user_defined_message import (
     UserDefinedMessageList,
 )
@@ -65,7 +66,7 @@ class UpdateStatus(object):
     :ivar start_time: The start time of the call, given as UTC in [RFC 2822](https://www.php.net/manual/en/class.datetime.php#datetime.constants.rfc2822) format. Empty if the call has not yet been dialed.
     :ivar end_time: The time the call ended, given as UTC in [RFC 2822](https://www.php.net/manual/en/class.datetime.php#datetime.constants.rfc2822) format. Empty if the call did not complete successfully.
     :ivar duration: The length of the call in seconds. This value is empty for busy, failed, unanswered, or ongoing calls.
-    :ivar price: The charge for this call, in the currency associated with the account. Populated after the call is completed. May not be immediately available.
+    :ivar price: The charge for this call, in the currency associated with the account. Populated after the call is completed. May not be immediately available. The price associated with a call only reflects the charge for connectivity.  Charges for other call-related features such as Answering Machine Detection, Text-To-Speech, and SIP REFER are not included in this value.
     :ivar price_unit: The currency in which `Price` is measured, in [ISO 4127](https://www.iso.org/iso/home/standards/currency_codes.htm) format (e.g., `USD`, `EUR`, `JPY`). Always capitalized for calls.
     :ivar direction: A string describing the direction of the call. Can be: `inbound` for inbound calls, `outbound-api` for calls initiated via the REST API or `outbound-dial` for calls initiated by a `<Dial>` verb. Using [Elastic SIP Trunking](https://www.twilio.com/docs/sip-trunking), the values can be [`trunking-terminating`](https://www.twilio.com/docs/sip-trunking#termination) for outgoing calls from your communications infrastructure to the PSTN or [`trunking-originating`](https://www.twilio.com/docs/sip-trunking#origination) for incoming calls to your communications infrastructure from the PSTN.
     :ivar answered_by: Either `human` or `machine` if this call was initiated with answering machine detection. Empty otherwise.
@@ -303,6 +304,13 @@ def streams(self) -> StreamList:
         """
         return self._proxy.streams
 
+    @property
+    def transcriptions(self) -> TranscriptionList:
+        """
+        Access the transcriptions
+        """
+        return self._proxy.transcriptions
+
     @property
     def user_defined_messages(self) -> UserDefinedMessageList:
         """
@@ -352,6 +360,7 @@ def __init__(self, version: Version, account_sid: str, sid: str):
         self._recordings: Optional[RecordingList] = None
         self._siprec: Optional[SiprecList] = None
         self._streams: Optional[StreamList] = None
+        self._transcriptions: Optional[TranscriptionList] = None
         self._user_defined_messages: Optional[UserDefinedMessageList] = None
         self._user_defined_message_subscriptions: Optional[
             UserDefinedMessageSubscriptionList
@@ -607,6 +616,19 @@ def streams(self) -> StreamList:
             )
         return self._streams
 
+    @property
+    def transcriptions(self) -> TranscriptionList:
+        """
+        Access the transcriptions
+        """
+        if self._transcriptions is None:
+            self._transcriptions = TranscriptionList(
+                self._version,
+                self._solution["account_sid"],
+                self._solution["sid"],
+            )
+        return self._transcriptions
+
     @property
     def user_defined_messages(self) -> UserDefinedMessageList:
         """
@@ -807,11 +829,10 @@ def create(
                 "ApplicationSid": application_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CallInstance(
@@ -941,11 +962,10 @@ async def create_async(
                 "ApplicationSid": application_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CallInstance(
diff --git a/twilio/rest/api/v2010/account/call/payment.py b/twilio/rest/api/v2010/account/call/payment.py
index 08619588d..00f76be81 100644
--- a/twilio/rest/api/v2010/account/call/payment.py
+++ b/twilio/rest/api/v2010/account/call/payment.py
@@ -362,11 +362,10 @@ def create(
                 "ValidCardTypes": valid_card_types,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return PaymentInstance(
@@ -440,11 +439,10 @@ async def create_async(
                 "ValidCardTypes": valid_card_types,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return PaymentInstance(
diff --git a/twilio/rest/api/v2010/account/call/recording.py b/twilio/rest/api/v2010/account/call/recording.py
index b9653c4b5..71158a2fe 100644
--- a/twilio/rest/api/v2010/account/call/recording.py
+++ b/twilio/rest/api/v2010/account/call/recording.py
@@ -454,11 +454,10 @@ def create(
                 "RecordingTrack": recording_track,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return RecordingInstance(
@@ -502,11 +501,10 @@ async def create_async(
                 "RecordingTrack": recording_track,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return RecordingInstance(
diff --git a/twilio/rest/api/v2010/account/call/siprec.py b/twilio/rest/api/v2010/account/call/siprec.py
index bcb537071..28a0734e1 100644
--- a/twilio/rest/api/v2010/account/call/siprec.py
+++ b/twilio/rest/api/v2010/account/call/siprec.py
@@ -861,11 +861,10 @@ def create(
                 "Parameter99.Value": parameter99_value,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SiprecInstance(
@@ -1498,11 +1497,10 @@ async def create_async(
                 "Parameter99.Value": parameter99_value,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SiprecInstance(
diff --git a/twilio/rest/api/v2010/account/call/stream.py b/twilio/rest/api/v2010/account/call/stream.py
index 3975f52d4..b3fa197bf 100644
--- a/twilio/rest/api/v2010/account/call/stream.py
+++ b/twilio/rest/api/v2010/account/call/stream.py
@@ -863,11 +863,10 @@ def create(
                 "Parameter99.Value": parameter99_value,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return StreamInstance(
@@ -1500,11 +1499,10 @@ async def create_async(
                 "Parameter99.Value": parameter99_value,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return StreamInstance(
diff --git a/twilio/rest/api/v2010/account/call/transcription.py b/twilio/rest/api/v2010/account/call/transcription.py
new file mode 100644
index 000000000..96554eaa0
--- /dev/null
+++ b/twilio/rest/api/v2010/account/call/transcription.py
@@ -0,0 +1,1605 @@
+r"""
+    This code was generated by
+   ___ _ _ _ _ _    _ ____    ____ ____ _    ____ ____ _  _ ____ ____ ____ ___ __   __
+    |  | | | | |    | |  | __ |  | |__| | __ | __ |___ |\ | |___ |__/ |__|  | |  | |__/
+    |  |_|_| | |___ | |__|    |__| |  | |    |__] |___ | \| |___ |  \ |  |  | |__| |  \
+
+    Twilio - Api
+    This is the public Twilio REST API.
+
+    NOTE: This class is auto generated by OpenAPI Generator.
+    https://openapi-generator.tech
+    Do not edit the class manually.
+"""
+
+from datetime import datetime
+from typing import Any, Dict, Optional, Union
+from twilio.base import deserialize, serialize, values
+from twilio.base.instance_context import InstanceContext
+from twilio.base.instance_resource import InstanceResource
+from twilio.base.list_resource import ListResource
+from twilio.base.version import Version
+
+
+class TranscriptionInstance(InstanceResource):
+
+    class Status(object):
+        IN_PROGRESS = "in-progress"
+        STOPPED = "stopped"
+
+    class Track(object):
+        INBOUND_TRACK = "inbound_track"
+        OUTBOUND_TRACK = "outbound_track"
+        BOTH_TRACKS = "both_tracks"
+
+    class UpdateStatus(object):
+        STOPPED = "stopped"
+
+    """
+    :ivar sid: The SID of the Transcription resource.
+    :ivar account_sid: The SID of the [Account](https://www.twilio.com/docs/iam/api/account) that created this Transcription resource.
+    :ivar call_sid: The SID of the [Call](https://www.twilio.com/docs/voice/api/call-resource) the Transcription resource is associated with.
+    :ivar name: The user-specified name of this Transcription, if one was given when the Transcription was created. This may be used to stop the Transcription.
+    :ivar status: 
+    :ivar date_updated: The date and time in GMT that this resource was last updated, specified in [RFC 2822](https://www.ietf.org/rfc/rfc2822.txt) format.
+    :ivar uri: 
+    """
+
+    def __init__(
+        self,
+        version: Version,
+        payload: Dict[str, Any],
+        account_sid: str,
+        call_sid: str,
+        sid: Optional[str] = None,
+    ):
+        super().__init__(version)
+
+        self.sid: Optional[str] = payload.get("sid")
+        self.account_sid: Optional[str] = payload.get("account_sid")
+        self.call_sid: Optional[str] = payload.get("call_sid")
+        self.name: Optional[str] = payload.get("name")
+        self.status: Optional["TranscriptionInstance.Status"] = payload.get("status")
+        self.date_updated: Optional[datetime] = deserialize.rfc2822_datetime(
+            payload.get("date_updated")
+        )
+        self.uri: Optional[str] = payload.get("uri")
+
+        self._solution = {
+            "account_sid": account_sid,
+            "call_sid": call_sid,
+            "sid": sid or self.sid,
+        }
+        self._context: Optional[TranscriptionContext] = None
+
+    @property
+    def _proxy(self) -> "TranscriptionContext":
+        """
+        Generate an instance context for the instance, the context is capable of
+        performing various actions. All instance actions are proxied to the context
+
+        :returns: TranscriptionContext for this TranscriptionInstance
+        """
+        if self._context is None:
+            self._context = TranscriptionContext(
+                self._version,
+                account_sid=self._solution["account_sid"],
+                call_sid=self._solution["call_sid"],
+                sid=self._solution["sid"],
+            )
+        return self._context
+
+    def update(
+        self, status: "TranscriptionInstance.UpdateStatus"
+    ) -> "TranscriptionInstance":
+        """
+        Update the TranscriptionInstance
+
+        :param status:
+
+        :returns: The updated TranscriptionInstance
+        """
+        return self._proxy.update(
+            status=status,
+        )
+
+    async def update_async(
+        self, status: "TranscriptionInstance.UpdateStatus"
+    ) -> "TranscriptionInstance":
+        """
+        Asynchronous coroutine to update the TranscriptionInstance
+
+        :param status:
+
+        :returns: The updated TranscriptionInstance
+        """
+        return await self._proxy.update_async(
+            status=status,
+        )
+
+    def __repr__(self) -> str:
+        """
+        Provide a friendly representation
+
+        :returns: Machine friendly representation
+        """
+        context = " ".join("{}={}".format(k, v) for k, v in self._solution.items())
+        return "<Twilio.Api.V2010.TranscriptionInstance {}>".format(context)
+
+
+class TranscriptionContext(InstanceContext):
+
+    def __init__(self, version: Version, account_sid: str, call_sid: str, sid: str):
+        """
+        Initialize the TranscriptionContext
+
+        :param version: Version that contains the resource
+        :param account_sid: The SID of the [Account](https://www.twilio.com/docs/iam/api/account) that created this Transcription resource.
+        :param call_sid: The SID of the [Call](https://www.twilio.com/docs/voice/api/call-resource) the Transcription resource is associated with.
+        :param sid: The SID of the Transcription resource, or the `name` used when creating the resource
+        """
+        super().__init__(version)
+
+        # Path Solution
+        self._solution = {
+            "account_sid": account_sid,
+            "call_sid": call_sid,
+            "sid": sid,
+        }
+        self._uri = (
+            "/Accounts/{account_sid}/Calls/{call_sid}/Transcriptions/{sid}.json".format(
+                **self._solution
+            )
+        )
+
+    def update(
+        self, status: "TranscriptionInstance.UpdateStatus"
+    ) -> TranscriptionInstance:
+        """
+        Update the TranscriptionInstance
+
+        :param status:
+
+        :returns: The updated TranscriptionInstance
+        """
+        data = values.of(
+            {
+                "Status": status,
+            }
+        )
+
+        payload = self._version.update(
+            method="POST",
+            uri=self._uri,
+            data=data,
+        )
+
+        return TranscriptionInstance(
+            self._version,
+            payload,
+            account_sid=self._solution["account_sid"],
+            call_sid=self._solution["call_sid"],
+            sid=self._solution["sid"],
+        )
+
+    async def update_async(
+        self, status: "TranscriptionInstance.UpdateStatus"
+    ) -> TranscriptionInstance:
+        """
+        Asynchronous coroutine to update the TranscriptionInstance
+
+        :param status:
+
+        :returns: The updated TranscriptionInstance
+        """
+        data = values.of(
+            {
+                "Status": status,
+            }
+        )
+
+        payload = await self._version.update_async(
+            method="POST",
+            uri=self._uri,
+            data=data,
+        )
+
+        return TranscriptionInstance(
+            self._version,
+            payload,
+            account_sid=self._solution["account_sid"],
+            call_sid=self._solution["call_sid"],
+            sid=self._solution["sid"],
+        )
+
+    def __repr__(self) -> str:
+        """
+        Provide a friendly representation
+
+        :returns: Machine friendly representation
+        """
+        context = " ".join("{}={}".format(k, v) for k, v in self._solution.items())
+        return "<Twilio.Api.V2010.TranscriptionContext {}>".format(context)
+
+
+class TranscriptionList(ListResource):
+
+    def __init__(self, version: Version, account_sid: str, call_sid: str):
+        """
+        Initialize the TranscriptionList
+
+        :param version: Version that contains the resource
+        :param account_sid: The SID of the [Account](https://www.twilio.com/docs/iam/api/account) that created this Transcription resource.
+        :param call_sid: The SID of the [Call](https://www.twilio.com/docs/voice/api/call-resource) the Transcription resource is associated with.
+
+        """
+        super().__init__(version)
+
+        # Path Solution
+        self._solution = {
+            "account_sid": account_sid,
+            "call_sid": call_sid,
+        }
+        self._uri = (
+            "/Accounts/{account_sid}/Calls/{call_sid}/Transcriptions.json".format(
+                **self._solution
+            )
+        )
+
+    def create(
+        self,
+        name: Union[str, object] = values.unset,
+        track: Union["TranscriptionInstance.Track", object] = values.unset,
+        status_callback_url: Union[str, object] = values.unset,
+        status_callback_method: Union[str, object] = values.unset,
+        inbound_track_label: Union[str, object] = values.unset,
+        outbound_track_label: Union[str, object] = values.unset,
+        partial_results: Union[bool, object] = values.unset,
+        language_code: Union[str, object] = values.unset,
+        transcription_engine: Union[str, object] = values.unset,
+        profanity_filter: Union[bool, object] = values.unset,
+        speech_model: Union[str, object] = values.unset,
+        hints: Union[str, object] = values.unset,
+        enable_automatic_punctuation: Union[bool, object] = values.unset,
+        parameter1_name: Union[str, object] = values.unset,
+        parameter1_value: Union[str, object] = values.unset,
+        parameter2_name: Union[str, object] = values.unset,
+        parameter2_value: Union[str, object] = values.unset,
+        parameter3_name: Union[str, object] = values.unset,
+        parameter3_value: Union[str, object] = values.unset,
+        parameter4_name: Union[str, object] = values.unset,
+        parameter4_value: Union[str, object] = values.unset,
+        parameter5_name: Union[str, object] = values.unset,
+        parameter5_value: Union[str, object] = values.unset,
+        parameter6_name: Union[str, object] = values.unset,
+        parameter6_value: Union[str, object] = values.unset,
+        parameter7_name: Union[str, object] = values.unset,
+        parameter7_value: Union[str, object] = values.unset,
+        parameter8_name: Union[str, object] = values.unset,
+        parameter8_value: Union[str, object] = values.unset,
+        parameter9_name: Union[str, object] = values.unset,
+        parameter9_value: Union[str, object] = values.unset,
+        parameter10_name: Union[str, object] = values.unset,
+        parameter10_value: Union[str, object] = values.unset,
+        parameter11_name: Union[str, object] = values.unset,
+        parameter11_value: Union[str, object] = values.unset,
+        parameter12_name: Union[str, object] = values.unset,
+        parameter12_value: Union[str, object] = values.unset,
+        parameter13_name: Union[str, object] = values.unset,
+        parameter13_value: Union[str, object] = values.unset,
+        parameter14_name: Union[str, object] = values.unset,
+        parameter14_value: Union[str, object] = values.unset,
+        parameter15_name: Union[str, object] = values.unset,
+        parameter15_value: Union[str, object] = values.unset,
+        parameter16_name: Union[str, object] = values.unset,
+        parameter16_value: Union[str, object] = values.unset,
+        parameter17_name: Union[str, object] = values.unset,
+        parameter17_value: Union[str, object] = values.unset,
+        parameter18_name: Union[str, object] = values.unset,
+        parameter18_value: Union[str, object] = values.unset,
+        parameter19_name: Union[str, object] = values.unset,
+        parameter19_value: Union[str, object] = values.unset,
+        parameter20_name: Union[str, object] = values.unset,
+        parameter20_value: Union[str, object] = values.unset,
+        parameter21_name: Union[str, object] = values.unset,
+        parameter21_value: Union[str, object] = values.unset,
+        parameter22_name: Union[str, object] = values.unset,
+        parameter22_value: Union[str, object] = values.unset,
+        parameter23_name: Union[str, object] = values.unset,
+        parameter23_value: Union[str, object] = values.unset,
+        parameter24_name: Union[str, object] = values.unset,
+        parameter24_value: Union[str, object] = values.unset,
+        parameter25_name: Union[str, object] = values.unset,
+        parameter25_value: Union[str, object] = values.unset,
+        parameter26_name: Union[str, object] = values.unset,
+        parameter26_value: Union[str, object] = values.unset,
+        parameter27_name: Union[str, object] = values.unset,
+        parameter27_value: Union[str, object] = values.unset,
+        parameter28_name: Union[str, object] = values.unset,
+        parameter28_value: Union[str, object] = values.unset,
+        parameter29_name: Union[str, object] = values.unset,
+        parameter29_value: Union[str, object] = values.unset,
+        parameter30_name: Union[str, object] = values.unset,
+        parameter30_value: Union[str, object] = values.unset,
+        parameter31_name: Union[str, object] = values.unset,
+        parameter31_value: Union[str, object] = values.unset,
+        parameter32_name: Union[str, object] = values.unset,
+        parameter32_value: Union[str, object] = values.unset,
+        parameter33_name: Union[str, object] = values.unset,
+        parameter33_value: Union[str, object] = values.unset,
+        parameter34_name: Union[str, object] = values.unset,
+        parameter34_value: Union[str, object] = values.unset,
+        parameter35_name: Union[str, object] = values.unset,
+        parameter35_value: Union[str, object] = values.unset,
+        parameter36_name: Union[str, object] = values.unset,
+        parameter36_value: Union[str, object] = values.unset,
+        parameter37_name: Union[str, object] = values.unset,
+        parameter37_value: Union[str, object] = values.unset,
+        parameter38_name: Union[str, object] = values.unset,
+        parameter38_value: Union[str, object] = values.unset,
+        parameter39_name: Union[str, object] = values.unset,
+        parameter39_value: Union[str, object] = values.unset,
+        parameter40_name: Union[str, object] = values.unset,
+        parameter40_value: Union[str, object] = values.unset,
+        parameter41_name: Union[str, object] = values.unset,
+        parameter41_value: Union[str, object] = values.unset,
+        parameter42_name: Union[str, object] = values.unset,
+        parameter42_value: Union[str, object] = values.unset,
+        parameter43_name: Union[str, object] = values.unset,
+        parameter43_value: Union[str, object] = values.unset,
+        parameter44_name: Union[str, object] = values.unset,
+        parameter44_value: Union[str, object] = values.unset,
+        parameter45_name: Union[str, object] = values.unset,
+        parameter45_value: Union[str, object] = values.unset,
+        parameter46_name: Union[str, object] = values.unset,
+        parameter46_value: Union[str, object] = values.unset,
+        parameter47_name: Union[str, object] = values.unset,
+        parameter47_value: Union[str, object] = values.unset,
+        parameter48_name: Union[str, object] = values.unset,
+        parameter48_value: Union[str, object] = values.unset,
+        parameter49_name: Union[str, object] = values.unset,
+        parameter49_value: Union[str, object] = values.unset,
+        parameter50_name: Union[str, object] = values.unset,
+        parameter50_value: Union[str, object] = values.unset,
+        parameter51_name: Union[str, object] = values.unset,
+        parameter51_value: Union[str, object] = values.unset,
+        parameter52_name: Union[str, object] = values.unset,
+        parameter52_value: Union[str, object] = values.unset,
+        parameter53_name: Union[str, object] = values.unset,
+        parameter53_value: Union[str, object] = values.unset,
+        parameter54_name: Union[str, object] = values.unset,
+        parameter54_value: Union[str, object] = values.unset,
+        parameter55_name: Union[str, object] = values.unset,
+        parameter55_value: Union[str, object] = values.unset,
+        parameter56_name: Union[str, object] = values.unset,
+        parameter56_value: Union[str, object] = values.unset,
+        parameter57_name: Union[str, object] = values.unset,
+        parameter57_value: Union[str, object] = values.unset,
+        parameter58_name: Union[str, object] = values.unset,
+        parameter58_value: Union[str, object] = values.unset,
+        parameter59_name: Union[str, object] = values.unset,
+        parameter59_value: Union[str, object] = values.unset,
+        parameter60_name: Union[str, object] = values.unset,
+        parameter60_value: Union[str, object] = values.unset,
+        parameter61_name: Union[str, object] = values.unset,
+        parameter61_value: Union[str, object] = values.unset,
+        parameter62_name: Union[str, object] = values.unset,
+        parameter62_value: Union[str, object] = values.unset,
+        parameter63_name: Union[str, object] = values.unset,
+        parameter63_value: Union[str, object] = values.unset,
+        parameter64_name: Union[str, object] = values.unset,
+        parameter64_value: Union[str, object] = values.unset,
+        parameter65_name: Union[str, object] = values.unset,
+        parameter65_value: Union[str, object] = values.unset,
+        parameter66_name: Union[str, object] = values.unset,
+        parameter66_value: Union[str, object] = values.unset,
+        parameter67_name: Union[str, object] = values.unset,
+        parameter67_value: Union[str, object] = values.unset,
+        parameter68_name: Union[str, object] = values.unset,
+        parameter68_value: Union[str, object] = values.unset,
+        parameter69_name: Union[str, object] = values.unset,
+        parameter69_value: Union[str, object] = values.unset,
+        parameter70_name: Union[str, object] = values.unset,
+        parameter70_value: Union[str, object] = values.unset,
+        parameter71_name: Union[str, object] = values.unset,
+        parameter71_value: Union[str, object] = values.unset,
+        parameter72_name: Union[str, object] = values.unset,
+        parameter72_value: Union[str, object] = values.unset,
+        parameter73_name: Union[str, object] = values.unset,
+        parameter73_value: Union[str, object] = values.unset,
+        parameter74_name: Union[str, object] = values.unset,
+        parameter74_value: Union[str, object] = values.unset,
+        parameter75_name: Union[str, object] = values.unset,
+        parameter75_value: Union[str, object] = values.unset,
+        parameter76_name: Union[str, object] = values.unset,
+        parameter76_value: Union[str, object] = values.unset,
+        parameter77_name: Union[str, object] = values.unset,
+        parameter77_value: Union[str, object] = values.unset,
+        parameter78_name: Union[str, object] = values.unset,
+        parameter78_value: Union[str, object] = values.unset,
+        parameter79_name: Union[str, object] = values.unset,
+        parameter79_value: Union[str, object] = values.unset,
+        parameter80_name: Union[str, object] = values.unset,
+        parameter80_value: Union[str, object] = values.unset,
+        parameter81_name: Union[str, object] = values.unset,
+        parameter81_value: Union[str, object] = values.unset,
+        parameter82_name: Union[str, object] = values.unset,
+        parameter82_value: Union[str, object] = values.unset,
+        parameter83_name: Union[str, object] = values.unset,
+        parameter83_value: Union[str, object] = values.unset,
+        parameter84_name: Union[str, object] = values.unset,
+        parameter84_value: Union[str, object] = values.unset,
+        parameter85_name: Union[str, object] = values.unset,
+        parameter85_value: Union[str, object] = values.unset,
+        parameter86_name: Union[str, object] = values.unset,
+        parameter86_value: Union[str, object] = values.unset,
+        parameter87_name: Union[str, object] = values.unset,
+        parameter87_value: Union[str, object] = values.unset,
+        parameter88_name: Union[str, object] = values.unset,
+        parameter88_value: Union[str, object] = values.unset,
+        parameter89_name: Union[str, object] = values.unset,
+        parameter89_value: Union[str, object] = values.unset,
+        parameter90_name: Union[str, object] = values.unset,
+        parameter90_value: Union[str, object] = values.unset,
+        parameter91_name: Union[str, object] = values.unset,
+        parameter91_value: Union[str, object] = values.unset,
+        parameter92_name: Union[str, object] = values.unset,
+        parameter92_value: Union[str, object] = values.unset,
+        parameter93_name: Union[str, object] = values.unset,
+        parameter93_value: Union[str, object] = values.unset,
+        parameter94_name: Union[str, object] = values.unset,
+        parameter94_value: Union[str, object] = values.unset,
+        parameter95_name: Union[str, object] = values.unset,
+        parameter95_value: Union[str, object] = values.unset,
+        parameter96_name: Union[str, object] = values.unset,
+        parameter96_value: Union[str, object] = values.unset,
+        parameter97_name: Union[str, object] = values.unset,
+        parameter97_value: Union[str, object] = values.unset,
+        parameter98_name: Union[str, object] = values.unset,
+        parameter98_value: Union[str, object] = values.unset,
+        parameter99_name: Union[str, object] = values.unset,
+        parameter99_value: Union[str, object] = values.unset,
+    ) -> TranscriptionInstance:
+        """
+        Create the TranscriptionInstance
+
+        :param name: The user-specified name of this Transcription, if one was given when the Transcription was created. This may be used to stop the Transcription.
+        :param track:
+        :param status_callback_url: Absolute URL of the status callback.
+        :param status_callback_method: The http method for the status_callback (one of GET, POST).
+        :param inbound_track_label: Friendly name given to the Inbound Track
+        :param outbound_track_label: Friendly name given to the Outbound Track
+        :param partial_results: Indicates if partial results are going to be send to the customer
+        :param language_code: Language code used by the transcription engine, specified in [BCP-47](https://www.rfc-editor.org/rfc/bcp/bcp47.txt) format
+        :param transcription_engine: Definition of the transcription engine to be used, between those supported by Twilio
+        :param profanity_filter: indicates if the server will attempt to filter out profanities, replacing all but the initial character in each filtered word with asterisks
+        :param speech_model: Recognition model used by the transcription engine, between those supported by the provider
+        :param hints: A Phrase contains words and phrase \\\"hints\\\" so that the speech recognition engine is more likely to recognize them.
+        :param enable_automatic_punctuation: The provider will adds punctuation to recognition result hypotheses
+        :param parameter1_name: Parameter name
+        :param parameter1_value: Parameter value
+        :param parameter2_name: Parameter name
+        :param parameter2_value: Parameter value
+        :param parameter3_name: Parameter name
+        :param parameter3_value: Parameter value
+        :param parameter4_name: Parameter name
+        :param parameter4_value: Parameter value
+        :param parameter5_name: Parameter name
+        :param parameter5_value: Parameter value
+        :param parameter6_name: Parameter name
+        :param parameter6_value: Parameter value
+        :param parameter7_name: Parameter name
+        :param parameter7_value: Parameter value
+        :param parameter8_name: Parameter name
+        :param parameter8_value: Parameter value
+        :param parameter9_name: Parameter name
+        :param parameter9_value: Parameter value
+        :param parameter10_name: Parameter name
+        :param parameter10_value: Parameter value
+        :param parameter11_name: Parameter name
+        :param parameter11_value: Parameter value
+        :param parameter12_name: Parameter name
+        :param parameter12_value: Parameter value
+        :param parameter13_name: Parameter name
+        :param parameter13_value: Parameter value
+        :param parameter14_name: Parameter name
+        :param parameter14_value: Parameter value
+        :param parameter15_name: Parameter name
+        :param parameter15_value: Parameter value
+        :param parameter16_name: Parameter name
+        :param parameter16_value: Parameter value
+        :param parameter17_name: Parameter name
+        :param parameter17_value: Parameter value
+        :param parameter18_name: Parameter name
+        :param parameter18_value: Parameter value
+        :param parameter19_name: Parameter name
+        :param parameter19_value: Parameter value
+        :param parameter20_name: Parameter name
+        :param parameter20_value: Parameter value
+        :param parameter21_name: Parameter name
+        :param parameter21_value: Parameter value
+        :param parameter22_name: Parameter name
+        :param parameter22_value: Parameter value
+        :param parameter23_name: Parameter name
+        :param parameter23_value: Parameter value
+        :param parameter24_name: Parameter name
+        :param parameter24_value: Parameter value
+        :param parameter25_name: Parameter name
+        :param parameter25_value: Parameter value
+        :param parameter26_name: Parameter name
+        :param parameter26_value: Parameter value
+        :param parameter27_name: Parameter name
+        :param parameter27_value: Parameter value
+        :param parameter28_name: Parameter name
+        :param parameter28_value: Parameter value
+        :param parameter29_name: Parameter name
+        :param parameter29_value: Parameter value
+        :param parameter30_name: Parameter name
+        :param parameter30_value: Parameter value
+        :param parameter31_name: Parameter name
+        :param parameter31_value: Parameter value
+        :param parameter32_name: Parameter name
+        :param parameter32_value: Parameter value
+        :param parameter33_name: Parameter name
+        :param parameter33_value: Parameter value
+        :param parameter34_name: Parameter name
+        :param parameter34_value: Parameter value
+        :param parameter35_name: Parameter name
+        :param parameter35_value: Parameter value
+        :param parameter36_name: Parameter name
+        :param parameter36_value: Parameter value
+        :param parameter37_name: Parameter name
+        :param parameter37_value: Parameter value
+        :param parameter38_name: Parameter name
+        :param parameter38_value: Parameter value
+        :param parameter39_name: Parameter name
+        :param parameter39_value: Parameter value
+        :param parameter40_name: Parameter name
+        :param parameter40_value: Parameter value
+        :param parameter41_name: Parameter name
+        :param parameter41_value: Parameter value
+        :param parameter42_name: Parameter name
+        :param parameter42_value: Parameter value
+        :param parameter43_name: Parameter name
+        :param parameter43_value: Parameter value
+        :param parameter44_name: Parameter name
+        :param parameter44_value: Parameter value
+        :param parameter45_name: Parameter name
+        :param parameter45_value: Parameter value
+        :param parameter46_name: Parameter name
+        :param parameter46_value: Parameter value
+        :param parameter47_name: Parameter name
+        :param parameter47_value: Parameter value
+        :param parameter48_name: Parameter name
+        :param parameter48_value: Parameter value
+        :param parameter49_name: Parameter name
+        :param parameter49_value: Parameter value
+        :param parameter50_name: Parameter name
+        :param parameter50_value: Parameter value
+        :param parameter51_name: Parameter name
+        :param parameter51_value: Parameter value
+        :param parameter52_name: Parameter name
+        :param parameter52_value: Parameter value
+        :param parameter53_name: Parameter name
+        :param parameter53_value: Parameter value
+        :param parameter54_name: Parameter name
+        :param parameter54_value: Parameter value
+        :param parameter55_name: Parameter name
+        :param parameter55_value: Parameter value
+        :param parameter56_name: Parameter name
+        :param parameter56_value: Parameter value
+        :param parameter57_name: Parameter name
+        :param parameter57_value: Parameter value
+        :param parameter58_name: Parameter name
+        :param parameter58_value: Parameter value
+        :param parameter59_name: Parameter name
+        :param parameter59_value: Parameter value
+        :param parameter60_name: Parameter name
+        :param parameter60_value: Parameter value
+        :param parameter61_name: Parameter name
+        :param parameter61_value: Parameter value
+        :param parameter62_name: Parameter name
+        :param parameter62_value: Parameter value
+        :param parameter63_name: Parameter name
+        :param parameter63_value: Parameter value
+        :param parameter64_name: Parameter name
+        :param parameter64_value: Parameter value
+        :param parameter65_name: Parameter name
+        :param parameter65_value: Parameter value
+        :param parameter66_name: Parameter name
+        :param parameter66_value: Parameter value
+        :param parameter67_name: Parameter name
+        :param parameter67_value: Parameter value
+        :param parameter68_name: Parameter name
+        :param parameter68_value: Parameter value
+        :param parameter69_name: Parameter name
+        :param parameter69_value: Parameter value
+        :param parameter70_name: Parameter name
+        :param parameter70_value: Parameter value
+        :param parameter71_name: Parameter name
+        :param parameter71_value: Parameter value
+        :param parameter72_name: Parameter name
+        :param parameter72_value: Parameter value
+        :param parameter73_name: Parameter name
+        :param parameter73_value: Parameter value
+        :param parameter74_name: Parameter name
+        :param parameter74_value: Parameter value
+        :param parameter75_name: Parameter name
+        :param parameter75_value: Parameter value
+        :param parameter76_name: Parameter name
+        :param parameter76_value: Parameter value
+        :param parameter77_name: Parameter name
+        :param parameter77_value: Parameter value
+        :param parameter78_name: Parameter name
+        :param parameter78_value: Parameter value
+        :param parameter79_name: Parameter name
+        :param parameter79_value: Parameter value
+        :param parameter80_name: Parameter name
+        :param parameter80_value: Parameter value
+        :param parameter81_name: Parameter name
+        :param parameter81_value: Parameter value
+        :param parameter82_name: Parameter name
+        :param parameter82_value: Parameter value
+        :param parameter83_name: Parameter name
+        :param parameter83_value: Parameter value
+        :param parameter84_name: Parameter name
+        :param parameter84_value: Parameter value
+        :param parameter85_name: Parameter name
+        :param parameter85_value: Parameter value
+        :param parameter86_name: Parameter name
+        :param parameter86_value: Parameter value
+        :param parameter87_name: Parameter name
+        :param parameter87_value: Parameter value
+        :param parameter88_name: Parameter name
+        :param parameter88_value: Parameter value
+        :param parameter89_name: Parameter name
+        :param parameter89_value: Parameter value
+        :param parameter90_name: Parameter name
+        :param parameter90_value: Parameter value
+        :param parameter91_name: Parameter name
+        :param parameter91_value: Parameter value
+        :param parameter92_name: Parameter name
+        :param parameter92_value: Parameter value
+        :param parameter93_name: Parameter name
+        :param parameter93_value: Parameter value
+        :param parameter94_name: Parameter name
+        :param parameter94_value: Parameter value
+        :param parameter95_name: Parameter name
+        :param parameter95_value: Parameter value
+        :param parameter96_name: Parameter name
+        :param parameter96_value: Parameter value
+        :param parameter97_name: Parameter name
+        :param parameter97_value: Parameter value
+        :param parameter98_name: Parameter name
+        :param parameter98_value: Parameter value
+        :param parameter99_name: Parameter name
+        :param parameter99_value: Parameter value
+
+        :returns: The created TranscriptionInstance
+        """
+
+        data = values.of(
+            {
+                "Name": name,
+                "Track": track,
+                "StatusCallbackUrl": status_callback_url,
+                "StatusCallbackMethod": status_callback_method,
+                "InboundTrackLabel": inbound_track_label,
+                "OutboundTrackLabel": outbound_track_label,
+                "PartialResults": serialize.boolean_to_string(partial_results),
+                "LanguageCode": language_code,
+                "TranscriptionEngine": transcription_engine,
+                "ProfanityFilter": serialize.boolean_to_string(profanity_filter),
+                "SpeechModel": speech_model,
+                "Hints": hints,
+                "EnableAutomaticPunctuation": serialize.boolean_to_string(
+                    enable_automatic_punctuation
+                ),
+                "Parameter1.Name": parameter1_name,
+                "Parameter1.Value": parameter1_value,
+                "Parameter2.Name": parameter2_name,
+                "Parameter2.Value": parameter2_value,
+                "Parameter3.Name": parameter3_name,
+                "Parameter3.Value": parameter3_value,
+                "Parameter4.Name": parameter4_name,
+                "Parameter4.Value": parameter4_value,
+                "Parameter5.Name": parameter5_name,
+                "Parameter5.Value": parameter5_value,
+                "Parameter6.Name": parameter6_name,
+                "Parameter6.Value": parameter6_value,
+                "Parameter7.Name": parameter7_name,
+                "Parameter7.Value": parameter7_value,
+                "Parameter8.Name": parameter8_name,
+                "Parameter8.Value": parameter8_value,
+                "Parameter9.Name": parameter9_name,
+                "Parameter9.Value": parameter9_value,
+                "Parameter10.Name": parameter10_name,
+                "Parameter10.Value": parameter10_value,
+                "Parameter11.Name": parameter11_name,
+                "Parameter11.Value": parameter11_value,
+                "Parameter12.Name": parameter12_name,
+                "Parameter12.Value": parameter12_value,
+                "Parameter13.Name": parameter13_name,
+                "Parameter13.Value": parameter13_value,
+                "Parameter14.Name": parameter14_name,
+                "Parameter14.Value": parameter14_value,
+                "Parameter15.Name": parameter15_name,
+                "Parameter15.Value": parameter15_value,
+                "Parameter16.Name": parameter16_name,
+                "Parameter16.Value": parameter16_value,
+                "Parameter17.Name": parameter17_name,
+                "Parameter17.Value": parameter17_value,
+                "Parameter18.Name": parameter18_name,
+                "Parameter18.Value": parameter18_value,
+                "Parameter19.Name": parameter19_name,
+                "Parameter19.Value": parameter19_value,
+                "Parameter20.Name": parameter20_name,
+                "Parameter20.Value": parameter20_value,
+                "Parameter21.Name": parameter21_name,
+                "Parameter21.Value": parameter21_value,
+                "Parameter22.Name": parameter22_name,
+                "Parameter22.Value": parameter22_value,
+                "Parameter23.Name": parameter23_name,
+                "Parameter23.Value": parameter23_value,
+                "Parameter24.Name": parameter24_name,
+                "Parameter24.Value": parameter24_value,
+                "Parameter25.Name": parameter25_name,
+                "Parameter25.Value": parameter25_value,
+                "Parameter26.Name": parameter26_name,
+                "Parameter26.Value": parameter26_value,
+                "Parameter27.Name": parameter27_name,
+                "Parameter27.Value": parameter27_value,
+                "Parameter28.Name": parameter28_name,
+                "Parameter28.Value": parameter28_value,
+                "Parameter29.Name": parameter29_name,
+                "Parameter29.Value": parameter29_value,
+                "Parameter30.Name": parameter30_name,
+                "Parameter30.Value": parameter30_value,
+                "Parameter31.Name": parameter31_name,
+                "Parameter31.Value": parameter31_value,
+                "Parameter32.Name": parameter32_name,
+                "Parameter32.Value": parameter32_value,
+                "Parameter33.Name": parameter33_name,
+                "Parameter33.Value": parameter33_value,
+                "Parameter34.Name": parameter34_name,
+                "Parameter34.Value": parameter34_value,
+                "Parameter35.Name": parameter35_name,
+                "Parameter35.Value": parameter35_value,
+                "Parameter36.Name": parameter36_name,
+                "Parameter36.Value": parameter36_value,
+                "Parameter37.Name": parameter37_name,
+                "Parameter37.Value": parameter37_value,
+                "Parameter38.Name": parameter38_name,
+                "Parameter38.Value": parameter38_value,
+                "Parameter39.Name": parameter39_name,
+                "Parameter39.Value": parameter39_value,
+                "Parameter40.Name": parameter40_name,
+                "Parameter40.Value": parameter40_value,
+                "Parameter41.Name": parameter41_name,
+                "Parameter41.Value": parameter41_value,
+                "Parameter42.Name": parameter42_name,
+                "Parameter42.Value": parameter42_value,
+                "Parameter43.Name": parameter43_name,
+                "Parameter43.Value": parameter43_value,
+                "Parameter44.Name": parameter44_name,
+                "Parameter44.Value": parameter44_value,
+                "Parameter45.Name": parameter45_name,
+                "Parameter45.Value": parameter45_value,
+                "Parameter46.Name": parameter46_name,
+                "Parameter46.Value": parameter46_value,
+                "Parameter47.Name": parameter47_name,
+                "Parameter47.Value": parameter47_value,
+                "Parameter48.Name": parameter48_name,
+                "Parameter48.Value": parameter48_value,
+                "Parameter49.Name": parameter49_name,
+                "Parameter49.Value": parameter49_value,
+                "Parameter50.Name": parameter50_name,
+                "Parameter50.Value": parameter50_value,
+                "Parameter51.Name": parameter51_name,
+                "Parameter51.Value": parameter51_value,
+                "Parameter52.Name": parameter52_name,
+                "Parameter52.Value": parameter52_value,
+                "Parameter53.Name": parameter53_name,
+                "Parameter53.Value": parameter53_value,
+                "Parameter54.Name": parameter54_name,
+                "Parameter54.Value": parameter54_value,
+                "Parameter55.Name": parameter55_name,
+                "Parameter55.Value": parameter55_value,
+                "Parameter56.Name": parameter56_name,
+                "Parameter56.Value": parameter56_value,
+                "Parameter57.Name": parameter57_name,
+                "Parameter57.Value": parameter57_value,
+                "Parameter58.Name": parameter58_name,
+                "Parameter58.Value": parameter58_value,
+                "Parameter59.Name": parameter59_name,
+                "Parameter59.Value": parameter59_value,
+                "Parameter60.Name": parameter60_name,
+                "Parameter60.Value": parameter60_value,
+                "Parameter61.Name": parameter61_name,
+                "Parameter61.Value": parameter61_value,
+                "Parameter62.Name": parameter62_name,
+                "Parameter62.Value": parameter62_value,
+                "Parameter63.Name": parameter63_name,
+                "Parameter63.Value": parameter63_value,
+                "Parameter64.Name": parameter64_name,
+                "Parameter64.Value": parameter64_value,
+                "Parameter65.Name": parameter65_name,
+                "Parameter65.Value": parameter65_value,
+                "Parameter66.Name": parameter66_name,
+                "Parameter66.Value": parameter66_value,
+                "Parameter67.Name": parameter67_name,
+                "Parameter67.Value": parameter67_value,
+                "Parameter68.Name": parameter68_name,
+                "Parameter68.Value": parameter68_value,
+                "Parameter69.Name": parameter69_name,
+                "Parameter69.Value": parameter69_value,
+                "Parameter70.Name": parameter70_name,
+                "Parameter70.Value": parameter70_value,
+                "Parameter71.Name": parameter71_name,
+                "Parameter71.Value": parameter71_value,
+                "Parameter72.Name": parameter72_name,
+                "Parameter72.Value": parameter72_value,
+                "Parameter73.Name": parameter73_name,
+                "Parameter73.Value": parameter73_value,
+                "Parameter74.Name": parameter74_name,
+                "Parameter74.Value": parameter74_value,
+                "Parameter75.Name": parameter75_name,
+                "Parameter75.Value": parameter75_value,
+                "Parameter76.Name": parameter76_name,
+                "Parameter76.Value": parameter76_value,
+                "Parameter77.Name": parameter77_name,
+                "Parameter77.Value": parameter77_value,
+                "Parameter78.Name": parameter78_name,
+                "Parameter78.Value": parameter78_value,
+                "Parameter79.Name": parameter79_name,
+                "Parameter79.Value": parameter79_value,
+                "Parameter80.Name": parameter80_name,
+                "Parameter80.Value": parameter80_value,
+                "Parameter81.Name": parameter81_name,
+                "Parameter81.Value": parameter81_value,
+                "Parameter82.Name": parameter82_name,
+                "Parameter82.Value": parameter82_value,
+                "Parameter83.Name": parameter83_name,
+                "Parameter83.Value": parameter83_value,
+                "Parameter84.Name": parameter84_name,
+                "Parameter84.Value": parameter84_value,
+                "Parameter85.Name": parameter85_name,
+                "Parameter85.Value": parameter85_value,
+                "Parameter86.Name": parameter86_name,
+                "Parameter86.Value": parameter86_value,
+                "Parameter87.Name": parameter87_name,
+                "Parameter87.Value": parameter87_value,
+                "Parameter88.Name": parameter88_name,
+                "Parameter88.Value": parameter88_value,
+                "Parameter89.Name": parameter89_name,
+                "Parameter89.Value": parameter89_value,
+                "Parameter90.Name": parameter90_name,
+                "Parameter90.Value": parameter90_value,
+                "Parameter91.Name": parameter91_name,
+                "Parameter91.Value": parameter91_value,
+                "Parameter92.Name": parameter92_name,
+                "Parameter92.Value": parameter92_value,
+                "Parameter93.Name": parameter93_name,
+                "Parameter93.Value": parameter93_value,
+                "Parameter94.Name": parameter94_name,
+                "Parameter94.Value": parameter94_value,
+                "Parameter95.Name": parameter95_name,
+                "Parameter95.Value": parameter95_value,
+                "Parameter96.Name": parameter96_name,
+                "Parameter96.Value": parameter96_value,
+                "Parameter97.Name": parameter97_name,
+                "Parameter97.Value": parameter97_value,
+                "Parameter98.Name": parameter98_name,
+                "Parameter98.Value": parameter98_value,
+                "Parameter99.Name": parameter99_name,
+                "Parameter99.Value": parameter99_value,
+            }
+        )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
+
+        payload = self._version.create(
+            method="POST", uri=self._uri, data=data, headers=headers
+        )
+
+        return TranscriptionInstance(
+            self._version,
+            payload,
+            account_sid=self._solution["account_sid"],
+            call_sid=self._solution["call_sid"],
+        )
+
+    async def create_async(
+        self,
+        name: Union[str, object] = values.unset,
+        track: Union["TranscriptionInstance.Track", object] = values.unset,
+        status_callback_url: Union[str, object] = values.unset,
+        status_callback_method: Union[str, object] = values.unset,
+        inbound_track_label: Union[str, object] = values.unset,
+        outbound_track_label: Union[str, object] = values.unset,
+        partial_results: Union[bool, object] = values.unset,
+        language_code: Union[str, object] = values.unset,
+        transcription_engine: Union[str, object] = values.unset,
+        profanity_filter: Union[bool, object] = values.unset,
+        speech_model: Union[str, object] = values.unset,
+        hints: Union[str, object] = values.unset,
+        enable_automatic_punctuation: Union[bool, object] = values.unset,
+        parameter1_name: Union[str, object] = values.unset,
+        parameter1_value: Union[str, object] = values.unset,
+        parameter2_name: Union[str, object] = values.unset,
+        parameter2_value: Union[str, object] = values.unset,
+        parameter3_name: Union[str, object] = values.unset,
+        parameter3_value: Union[str, object] = values.unset,
+        parameter4_name: Union[str, object] = values.unset,
+        parameter4_value: Union[str, object] = values.unset,
+        parameter5_name: Union[str, object] = values.unset,
+        parameter5_value: Union[str, object] = values.unset,
+        parameter6_name: Union[str, object] = values.unset,
+        parameter6_value: Union[str, object] = values.unset,
+        parameter7_name: Union[str, object] = values.unset,
+        parameter7_value: Union[str, object] = values.unset,
+        parameter8_name: Union[str, object] = values.unset,
+        parameter8_value: Union[str, object] = values.unset,
+        parameter9_name: Union[str, object] = values.unset,
+        parameter9_value: Union[str, object] = values.unset,
+        parameter10_name: Union[str, object] = values.unset,
+        parameter10_value: Union[str, object] = values.unset,
+        parameter11_name: Union[str, object] = values.unset,
+        parameter11_value: Union[str, object] = values.unset,
+        parameter12_name: Union[str, object] = values.unset,
+        parameter12_value: Union[str, object] = values.unset,
+        parameter13_name: Union[str, object] = values.unset,
+        parameter13_value: Union[str, object] = values.unset,
+        parameter14_name: Union[str, object] = values.unset,
+        parameter14_value: Union[str, object] = values.unset,
+        parameter15_name: Union[str, object] = values.unset,
+        parameter15_value: Union[str, object] = values.unset,
+        parameter16_name: Union[str, object] = values.unset,
+        parameter16_value: Union[str, object] = values.unset,
+        parameter17_name: Union[str, object] = values.unset,
+        parameter17_value: Union[str, object] = values.unset,
+        parameter18_name: Union[str, object] = values.unset,
+        parameter18_value: Union[str, object] = values.unset,
+        parameter19_name: Union[str, object] = values.unset,
+        parameter19_value: Union[str, object] = values.unset,
+        parameter20_name: Union[str, object] = values.unset,
+        parameter20_value: Union[str, object] = values.unset,
+        parameter21_name: Union[str, object] = values.unset,
+        parameter21_value: Union[str, object] = values.unset,
+        parameter22_name: Union[str, object] = values.unset,
+        parameter22_value: Union[str, object] = values.unset,
+        parameter23_name: Union[str, object] = values.unset,
+        parameter23_value: Union[str, object] = values.unset,
+        parameter24_name: Union[str, object] = values.unset,
+        parameter24_value: Union[str, object] = values.unset,
+        parameter25_name: Union[str, object] = values.unset,
+        parameter25_value: Union[str, object] = values.unset,
+        parameter26_name: Union[str, object] = values.unset,
+        parameter26_value: Union[str, object] = values.unset,
+        parameter27_name: Union[str, object] = values.unset,
+        parameter27_value: Union[str, object] = values.unset,
+        parameter28_name: Union[str, object] = values.unset,
+        parameter28_value: Union[str, object] = values.unset,
+        parameter29_name: Union[str, object] = values.unset,
+        parameter29_value: Union[str, object] = values.unset,
+        parameter30_name: Union[str, object] = values.unset,
+        parameter30_value: Union[str, object] = values.unset,
+        parameter31_name: Union[str, object] = values.unset,
+        parameter31_value: Union[str, object] = values.unset,
+        parameter32_name: Union[str, object] = values.unset,
+        parameter32_value: Union[str, object] = values.unset,
+        parameter33_name: Union[str, object] = values.unset,
+        parameter33_value: Union[str, object] = values.unset,
+        parameter34_name: Union[str, object] = values.unset,
+        parameter34_value: Union[str, object] = values.unset,
+        parameter35_name: Union[str, object] = values.unset,
+        parameter35_value: Union[str, object] = values.unset,
+        parameter36_name: Union[str, object] = values.unset,
+        parameter36_value: Union[str, object] = values.unset,
+        parameter37_name: Union[str, object] = values.unset,
+        parameter37_value: Union[str, object] = values.unset,
+        parameter38_name: Union[str, object] = values.unset,
+        parameter38_value: Union[str, object] = values.unset,
+        parameter39_name: Union[str, object] = values.unset,
+        parameter39_value: Union[str, object] = values.unset,
+        parameter40_name: Union[str, object] = values.unset,
+        parameter40_value: Union[str, object] = values.unset,
+        parameter41_name: Union[str, object] = values.unset,
+        parameter41_value: Union[str, object] = values.unset,
+        parameter42_name: Union[str, object] = values.unset,
+        parameter42_value: Union[str, object] = values.unset,
+        parameter43_name: Union[str, object] = values.unset,
+        parameter43_value: Union[str, object] = values.unset,
+        parameter44_name: Union[str, object] = values.unset,
+        parameter44_value: Union[str, object] = values.unset,
+        parameter45_name: Union[str, object] = values.unset,
+        parameter45_value: Union[str, object] = values.unset,
+        parameter46_name: Union[str, object] = values.unset,
+        parameter46_value: Union[str, object] = values.unset,
+        parameter47_name: Union[str, object] = values.unset,
+        parameter47_value: Union[str, object] = values.unset,
+        parameter48_name: Union[str, object] = values.unset,
+        parameter48_value: Union[str, object] = values.unset,
+        parameter49_name: Union[str, object] = values.unset,
+        parameter49_value: Union[str, object] = values.unset,
+        parameter50_name: Union[str, object] = values.unset,
+        parameter50_value: Union[str, object] = values.unset,
+        parameter51_name: Union[str, object] = values.unset,
+        parameter51_value: Union[str, object] = values.unset,
+        parameter52_name: Union[str, object] = values.unset,
+        parameter52_value: Union[str, object] = values.unset,
+        parameter53_name: Union[str, object] = values.unset,
+        parameter53_value: Union[str, object] = values.unset,
+        parameter54_name: Union[str, object] = values.unset,
+        parameter54_value: Union[str, object] = values.unset,
+        parameter55_name: Union[str, object] = values.unset,
+        parameter55_value: Union[str, object] = values.unset,
+        parameter56_name: Union[str, object] = values.unset,
+        parameter56_value: Union[str, object] = values.unset,
+        parameter57_name: Union[str, object] = values.unset,
+        parameter57_value: Union[str, object] = values.unset,
+        parameter58_name: Union[str, object] = values.unset,
+        parameter58_value: Union[str, object] = values.unset,
+        parameter59_name: Union[str, object] = values.unset,
+        parameter59_value: Union[str, object] = values.unset,
+        parameter60_name: Union[str, object] = values.unset,
+        parameter60_value: Union[str, object] = values.unset,
+        parameter61_name: Union[str, object] = values.unset,
+        parameter61_value: Union[str, object] = values.unset,
+        parameter62_name: Union[str, object] = values.unset,
+        parameter62_value: Union[str, object] = values.unset,
+        parameter63_name: Union[str, object] = values.unset,
+        parameter63_value: Union[str, object] = values.unset,
+        parameter64_name: Union[str, object] = values.unset,
+        parameter64_value: Union[str, object] = values.unset,
+        parameter65_name: Union[str, object] = values.unset,
+        parameter65_value: Union[str, object] = values.unset,
+        parameter66_name: Union[str, object] = values.unset,
+        parameter66_value: Union[str, object] = values.unset,
+        parameter67_name: Union[str, object] = values.unset,
+        parameter67_value: Union[str, object] = values.unset,
+        parameter68_name: Union[str, object] = values.unset,
+        parameter68_value: Union[str, object] = values.unset,
+        parameter69_name: Union[str, object] = values.unset,
+        parameter69_value: Union[str, object] = values.unset,
+        parameter70_name: Union[str, object] = values.unset,
+        parameter70_value: Union[str, object] = values.unset,
+        parameter71_name: Union[str, object] = values.unset,
+        parameter71_value: Union[str, object] = values.unset,
+        parameter72_name: Union[str, object] = values.unset,
+        parameter72_value: Union[str, object] = values.unset,
+        parameter73_name: Union[str, object] = values.unset,
+        parameter73_value: Union[str, object] = values.unset,
+        parameter74_name: Union[str, object] = values.unset,
+        parameter74_value: Union[str, object] = values.unset,
+        parameter75_name: Union[str, object] = values.unset,
+        parameter75_value: Union[str, object] = values.unset,
+        parameter76_name: Union[str, object] = values.unset,
+        parameter76_value: Union[str, object] = values.unset,
+        parameter77_name: Union[str, object] = values.unset,
+        parameter77_value: Union[str, object] = values.unset,
+        parameter78_name: Union[str, object] = values.unset,
+        parameter78_value: Union[str, object] = values.unset,
+        parameter79_name: Union[str, object] = values.unset,
+        parameter79_value: Union[str, object] = values.unset,
+        parameter80_name: Union[str, object] = values.unset,
+        parameter80_value: Union[str, object] = values.unset,
+        parameter81_name: Union[str, object] = values.unset,
+        parameter81_value: Union[str, object] = values.unset,
+        parameter82_name: Union[str, object] = values.unset,
+        parameter82_value: Union[str, object] = values.unset,
+        parameter83_name: Union[str, object] = values.unset,
+        parameter83_value: Union[str, object] = values.unset,
+        parameter84_name: Union[str, object] = values.unset,
+        parameter84_value: Union[str, object] = values.unset,
+        parameter85_name: Union[str, object] = values.unset,
+        parameter85_value: Union[str, object] = values.unset,
+        parameter86_name: Union[str, object] = values.unset,
+        parameter86_value: Union[str, object] = values.unset,
+        parameter87_name: Union[str, object] = values.unset,
+        parameter87_value: Union[str, object] = values.unset,
+        parameter88_name: Union[str, object] = values.unset,
+        parameter88_value: Union[str, object] = values.unset,
+        parameter89_name: Union[str, object] = values.unset,
+        parameter89_value: Union[str, object] = values.unset,
+        parameter90_name: Union[str, object] = values.unset,
+        parameter90_value: Union[str, object] = values.unset,
+        parameter91_name: Union[str, object] = values.unset,
+        parameter91_value: Union[str, object] = values.unset,
+        parameter92_name: Union[str, object] = values.unset,
+        parameter92_value: Union[str, object] = values.unset,
+        parameter93_name: Union[str, object] = values.unset,
+        parameter93_value: Union[str, object] = values.unset,
+        parameter94_name: Union[str, object] = values.unset,
+        parameter94_value: Union[str, object] = values.unset,
+        parameter95_name: Union[str, object] = values.unset,
+        parameter95_value: Union[str, object] = values.unset,
+        parameter96_name: Union[str, object] = values.unset,
+        parameter96_value: Union[str, object] = values.unset,
+        parameter97_name: Union[str, object] = values.unset,
+        parameter97_value: Union[str, object] = values.unset,
+        parameter98_name: Union[str, object] = values.unset,
+        parameter98_value: Union[str, object] = values.unset,
+        parameter99_name: Union[str, object] = values.unset,
+        parameter99_value: Union[str, object] = values.unset,
+    ) -> TranscriptionInstance:
+        """
+        Asynchronously create the TranscriptionInstance
+
+        :param name: The user-specified name of this Transcription, if one was given when the Transcription was created. This may be used to stop the Transcription.
+        :param track:
+        :param status_callback_url: Absolute URL of the status callback.
+        :param status_callback_method: The http method for the status_callback (one of GET, POST).
+        :param inbound_track_label: Friendly name given to the Inbound Track
+        :param outbound_track_label: Friendly name given to the Outbound Track
+        :param partial_results: Indicates if partial results are going to be send to the customer
+        :param language_code: Language code used by the transcription engine, specified in [BCP-47](https://www.rfc-editor.org/rfc/bcp/bcp47.txt) format
+        :param transcription_engine: Definition of the transcription engine to be used, between those supported by Twilio
+        :param profanity_filter: indicates if the server will attempt to filter out profanities, replacing all but the initial character in each filtered word with asterisks
+        :param speech_model: Recognition model used by the transcription engine, between those supported by the provider
+        :param hints: A Phrase contains words and phrase \\\"hints\\\" so that the speech recognition engine is more likely to recognize them.
+        :param enable_automatic_punctuation: The provider will adds punctuation to recognition result hypotheses
+        :param parameter1_name: Parameter name
+        :param parameter1_value: Parameter value
+        :param parameter2_name: Parameter name
+        :param parameter2_value: Parameter value
+        :param parameter3_name: Parameter name
+        :param parameter3_value: Parameter value
+        :param parameter4_name: Parameter name
+        :param parameter4_value: Parameter value
+        :param parameter5_name: Parameter name
+        :param parameter5_value: Parameter value
+        :param parameter6_name: Parameter name
+        :param parameter6_value: Parameter value
+        :param parameter7_name: Parameter name
+        :param parameter7_value: Parameter value
+        :param parameter8_name: Parameter name
+        :param parameter8_value: Parameter value
+        :param parameter9_name: Parameter name
+        :param parameter9_value: Parameter value
+        :param parameter10_name: Parameter name
+        :param parameter10_value: Parameter value
+        :param parameter11_name: Parameter name
+        :param parameter11_value: Parameter value
+        :param parameter12_name: Parameter name
+        :param parameter12_value: Parameter value
+        :param parameter13_name: Parameter name
+        :param parameter13_value: Parameter value
+        :param parameter14_name: Parameter name
+        :param parameter14_value: Parameter value
+        :param parameter15_name: Parameter name
+        :param parameter15_value: Parameter value
+        :param parameter16_name: Parameter name
+        :param parameter16_value: Parameter value
+        :param parameter17_name: Parameter name
+        :param parameter17_value: Parameter value
+        :param parameter18_name: Parameter name
+        :param parameter18_value: Parameter value
+        :param parameter19_name: Parameter name
+        :param parameter19_value: Parameter value
+        :param parameter20_name: Parameter name
+        :param parameter20_value: Parameter value
+        :param parameter21_name: Parameter name
+        :param parameter21_value: Parameter value
+        :param parameter22_name: Parameter name
+        :param parameter22_value: Parameter value
+        :param parameter23_name: Parameter name
+        :param parameter23_value: Parameter value
+        :param parameter24_name: Parameter name
+        :param parameter24_value: Parameter value
+        :param parameter25_name: Parameter name
+        :param parameter25_value: Parameter value
+        :param parameter26_name: Parameter name
+        :param parameter26_value: Parameter value
+        :param parameter27_name: Parameter name
+        :param parameter27_value: Parameter value
+        :param parameter28_name: Parameter name
+        :param parameter28_value: Parameter value
+        :param parameter29_name: Parameter name
+        :param parameter29_value: Parameter value
+        :param parameter30_name: Parameter name
+        :param parameter30_value: Parameter value
+        :param parameter31_name: Parameter name
+        :param parameter31_value: Parameter value
+        :param parameter32_name: Parameter name
+        :param parameter32_value: Parameter value
+        :param parameter33_name: Parameter name
+        :param parameter33_value: Parameter value
+        :param parameter34_name: Parameter name
+        :param parameter34_value: Parameter value
+        :param parameter35_name: Parameter name
+        :param parameter35_value: Parameter value
+        :param parameter36_name: Parameter name
+        :param parameter36_value: Parameter value
+        :param parameter37_name: Parameter name
+        :param parameter37_value: Parameter value
+        :param parameter38_name: Parameter name
+        :param parameter38_value: Parameter value
+        :param parameter39_name: Parameter name
+        :param parameter39_value: Parameter value
+        :param parameter40_name: Parameter name
+        :param parameter40_value: Parameter value
+        :param parameter41_name: Parameter name
+        :param parameter41_value: Parameter value
+        :param parameter42_name: Parameter name
+        :param parameter42_value: Parameter value
+        :param parameter43_name: Parameter name
+        :param parameter43_value: Parameter value
+        :param parameter44_name: Parameter name
+        :param parameter44_value: Parameter value
+        :param parameter45_name: Parameter name
+        :param parameter45_value: Parameter value
+        :param parameter46_name: Parameter name
+        :param parameter46_value: Parameter value
+        :param parameter47_name: Parameter name
+        :param parameter47_value: Parameter value
+        :param parameter48_name: Parameter name
+        :param parameter48_value: Parameter value
+        :param parameter49_name: Parameter name
+        :param parameter49_value: Parameter value
+        :param parameter50_name: Parameter name
+        :param parameter50_value: Parameter value
+        :param parameter51_name: Parameter name
+        :param parameter51_value: Parameter value
+        :param parameter52_name: Parameter name
+        :param parameter52_value: Parameter value
+        :param parameter53_name: Parameter name
+        :param parameter53_value: Parameter value
+        :param parameter54_name: Parameter name
+        :param parameter54_value: Parameter value
+        :param parameter55_name: Parameter name
+        :param parameter55_value: Parameter value
+        :param parameter56_name: Parameter name
+        :param parameter56_value: Parameter value
+        :param parameter57_name: Parameter name
+        :param parameter57_value: Parameter value
+        :param parameter58_name: Parameter name
+        :param parameter58_value: Parameter value
+        :param parameter59_name: Parameter name
+        :param parameter59_value: Parameter value
+        :param parameter60_name: Parameter name
+        :param parameter60_value: Parameter value
+        :param parameter61_name: Parameter name
+        :param parameter61_value: Parameter value
+        :param parameter62_name: Parameter name
+        :param parameter62_value: Parameter value
+        :param parameter63_name: Parameter name
+        :param parameter63_value: Parameter value
+        :param parameter64_name: Parameter name
+        :param parameter64_value: Parameter value
+        :param parameter65_name: Parameter name
+        :param parameter65_value: Parameter value
+        :param parameter66_name: Parameter name
+        :param parameter66_value: Parameter value
+        :param parameter67_name: Parameter name
+        :param parameter67_value: Parameter value
+        :param parameter68_name: Parameter name
+        :param parameter68_value: Parameter value
+        :param parameter69_name: Parameter name
+        :param parameter69_value: Parameter value
+        :param parameter70_name: Parameter name
+        :param parameter70_value: Parameter value
+        :param parameter71_name: Parameter name
+        :param parameter71_value: Parameter value
+        :param parameter72_name: Parameter name
+        :param parameter72_value: Parameter value
+        :param parameter73_name: Parameter name
+        :param parameter73_value: Parameter value
+        :param parameter74_name: Parameter name
+        :param parameter74_value: Parameter value
+        :param parameter75_name: Parameter name
+        :param parameter75_value: Parameter value
+        :param parameter76_name: Parameter name
+        :param parameter76_value: Parameter value
+        :param parameter77_name: Parameter name
+        :param parameter77_value: Parameter value
+        :param parameter78_name: Parameter name
+        :param parameter78_value: Parameter value
+        :param parameter79_name: Parameter name
+        :param parameter79_value: Parameter value
+        :param parameter80_name: Parameter name
+        :param parameter80_value: Parameter value
+        :param parameter81_name: Parameter name
+        :param parameter81_value: Parameter value
+        :param parameter82_name: Parameter name
+        :param parameter82_value: Parameter value
+        :param parameter83_name: Parameter name
+        :param parameter83_value: Parameter value
+        :param parameter84_name: Parameter name
+        :param parameter84_value: Parameter value
+        :param parameter85_name: Parameter name
+        :param parameter85_value: Parameter value
+        :param parameter86_name: Parameter name
+        :param parameter86_value: Parameter value
+        :param parameter87_name: Parameter name
+        :param parameter87_value: Parameter value
+        :param parameter88_name: Parameter name
+        :param parameter88_value: Parameter value
+        :param parameter89_name: Parameter name
+        :param parameter89_value: Parameter value
+        :param parameter90_name: Parameter name
+        :param parameter90_value: Parameter value
+        :param parameter91_name: Parameter name
+        :param parameter91_value: Parameter value
+        :param parameter92_name: Parameter name
+        :param parameter92_value: Parameter value
+        :param parameter93_name: Parameter name
+        :param parameter93_value: Parameter value
+        :param parameter94_name: Parameter name
+        :param parameter94_value: Parameter value
+        :param parameter95_name: Parameter name
+        :param parameter95_value: Parameter value
+        :param parameter96_name: Parameter name
+        :param parameter96_value: Parameter value
+        :param parameter97_name: Parameter name
+        :param parameter97_value: Parameter value
+        :param parameter98_name: Parameter name
+        :param parameter98_value: Parameter value
+        :param parameter99_name: Parameter name
+        :param parameter99_value: Parameter value
+
+        :returns: The created TranscriptionInstance
+        """
+
+        data = values.of(
+            {
+                "Name": name,
+                "Track": track,
+                "StatusCallbackUrl": status_callback_url,
+                "StatusCallbackMethod": status_callback_method,
+                "InboundTrackLabel": inbound_track_label,
+                "OutboundTrackLabel": outbound_track_label,
+                "PartialResults": serialize.boolean_to_string(partial_results),
+                "LanguageCode": language_code,
+                "TranscriptionEngine": transcription_engine,
+                "ProfanityFilter": serialize.boolean_to_string(profanity_filter),
+                "SpeechModel": speech_model,
+                "Hints": hints,
+                "EnableAutomaticPunctuation": serialize.boolean_to_string(
+                    enable_automatic_punctuation
+                ),
+                "Parameter1.Name": parameter1_name,
+                "Parameter1.Value": parameter1_value,
+                "Parameter2.Name": parameter2_name,
+                "Parameter2.Value": parameter2_value,
+                "Parameter3.Name": parameter3_name,
+                "Parameter3.Value": parameter3_value,
+                "Parameter4.Name": parameter4_name,
+                "Parameter4.Value": parameter4_value,
+                "Parameter5.Name": parameter5_name,
+                "Parameter5.Value": parameter5_value,
+                "Parameter6.Name": parameter6_name,
+                "Parameter6.Value": parameter6_value,
+                "Parameter7.Name": parameter7_name,
+                "Parameter7.Value": parameter7_value,
+                "Parameter8.Name": parameter8_name,
+                "Parameter8.Value": parameter8_value,
+                "Parameter9.Name": parameter9_name,
+                "Parameter9.Value": parameter9_value,
+                "Parameter10.Name": parameter10_name,
+                "Parameter10.Value": parameter10_value,
+                "Parameter11.Name": parameter11_name,
+                "Parameter11.Value": parameter11_value,
+                "Parameter12.Name": parameter12_name,
+                "Parameter12.Value": parameter12_value,
+                "Parameter13.Name": parameter13_name,
+                "Parameter13.Value": parameter13_value,
+                "Parameter14.Name": parameter14_name,
+                "Parameter14.Value": parameter14_value,
+                "Parameter15.Name": parameter15_name,
+                "Parameter15.Value": parameter15_value,
+                "Parameter16.Name": parameter16_name,
+                "Parameter16.Value": parameter16_value,
+                "Parameter17.Name": parameter17_name,
+                "Parameter17.Value": parameter17_value,
+                "Parameter18.Name": parameter18_name,
+                "Parameter18.Value": parameter18_value,
+                "Parameter19.Name": parameter19_name,
+                "Parameter19.Value": parameter19_value,
+                "Parameter20.Name": parameter20_name,
+                "Parameter20.Value": parameter20_value,
+                "Parameter21.Name": parameter21_name,
+                "Parameter21.Value": parameter21_value,
+                "Parameter22.Name": parameter22_name,
+                "Parameter22.Value": parameter22_value,
+                "Parameter23.Name": parameter23_name,
+                "Parameter23.Value": parameter23_value,
+                "Parameter24.Name": parameter24_name,
+                "Parameter24.Value": parameter24_value,
+                "Parameter25.Name": parameter25_name,
+                "Parameter25.Value": parameter25_value,
+                "Parameter26.Name": parameter26_name,
+                "Parameter26.Value": parameter26_value,
+                "Parameter27.Name": parameter27_name,
+                "Parameter27.Value": parameter27_value,
+                "Parameter28.Name": parameter28_name,
+                "Parameter28.Value": parameter28_value,
+                "Parameter29.Name": parameter29_name,
+                "Parameter29.Value": parameter29_value,
+                "Parameter30.Name": parameter30_name,
+                "Parameter30.Value": parameter30_value,
+                "Parameter31.Name": parameter31_name,
+                "Parameter31.Value": parameter31_value,
+                "Parameter32.Name": parameter32_name,
+                "Parameter32.Value": parameter32_value,
+                "Parameter33.Name": parameter33_name,
+                "Parameter33.Value": parameter33_value,
+                "Parameter34.Name": parameter34_name,
+                "Parameter34.Value": parameter34_value,
+                "Parameter35.Name": parameter35_name,
+                "Parameter35.Value": parameter35_value,
+                "Parameter36.Name": parameter36_name,
+                "Parameter36.Value": parameter36_value,
+                "Parameter37.Name": parameter37_name,
+                "Parameter37.Value": parameter37_value,
+                "Parameter38.Name": parameter38_name,
+                "Parameter38.Value": parameter38_value,
+                "Parameter39.Name": parameter39_name,
+                "Parameter39.Value": parameter39_value,
+                "Parameter40.Name": parameter40_name,
+                "Parameter40.Value": parameter40_value,
+                "Parameter41.Name": parameter41_name,
+                "Parameter41.Value": parameter41_value,
+                "Parameter42.Name": parameter42_name,
+                "Parameter42.Value": parameter42_value,
+                "Parameter43.Name": parameter43_name,
+                "Parameter43.Value": parameter43_value,
+                "Parameter44.Name": parameter44_name,
+                "Parameter44.Value": parameter44_value,
+                "Parameter45.Name": parameter45_name,
+                "Parameter45.Value": parameter45_value,
+                "Parameter46.Name": parameter46_name,
+                "Parameter46.Value": parameter46_value,
+                "Parameter47.Name": parameter47_name,
+                "Parameter47.Value": parameter47_value,
+                "Parameter48.Name": parameter48_name,
+                "Parameter48.Value": parameter48_value,
+                "Parameter49.Name": parameter49_name,
+                "Parameter49.Value": parameter49_value,
+                "Parameter50.Name": parameter50_name,
+                "Parameter50.Value": parameter50_value,
+                "Parameter51.Name": parameter51_name,
+                "Parameter51.Value": parameter51_value,
+                "Parameter52.Name": parameter52_name,
+                "Parameter52.Value": parameter52_value,
+                "Parameter53.Name": parameter53_name,
+                "Parameter53.Value": parameter53_value,
+                "Parameter54.Name": parameter54_name,
+                "Parameter54.Value": parameter54_value,
+                "Parameter55.Name": parameter55_name,
+                "Parameter55.Value": parameter55_value,
+                "Parameter56.Name": parameter56_name,
+                "Parameter56.Value": parameter56_value,
+                "Parameter57.Name": parameter57_name,
+                "Parameter57.Value": parameter57_value,
+                "Parameter58.Name": parameter58_name,
+                "Parameter58.Value": parameter58_value,
+                "Parameter59.Name": parameter59_name,
+                "Parameter59.Value": parameter59_value,
+                "Parameter60.Name": parameter60_name,
+                "Parameter60.Value": parameter60_value,
+                "Parameter61.Name": parameter61_name,
+                "Parameter61.Value": parameter61_value,
+                "Parameter62.Name": parameter62_name,
+                "Parameter62.Value": parameter62_value,
+                "Parameter63.Name": parameter63_name,
+                "Parameter63.Value": parameter63_value,
+                "Parameter64.Name": parameter64_name,
+                "Parameter64.Value": parameter64_value,
+                "Parameter65.Name": parameter65_name,
+                "Parameter65.Value": parameter65_value,
+                "Parameter66.Name": parameter66_name,
+                "Parameter66.Value": parameter66_value,
+                "Parameter67.Name": parameter67_name,
+                "Parameter67.Value": parameter67_value,
+                "Parameter68.Name": parameter68_name,
+                "Parameter68.Value": parameter68_value,
+                "Parameter69.Name": parameter69_name,
+                "Parameter69.Value": parameter69_value,
+                "Parameter70.Name": parameter70_name,
+                "Parameter70.Value": parameter70_value,
+                "Parameter71.Name": parameter71_name,
+                "Parameter71.Value": parameter71_value,
+                "Parameter72.Name": parameter72_name,
+                "Parameter72.Value": parameter72_value,
+                "Parameter73.Name": parameter73_name,
+                "Parameter73.Value": parameter73_value,
+                "Parameter74.Name": parameter74_name,
+                "Parameter74.Value": parameter74_value,
+                "Parameter75.Name": parameter75_name,
+                "Parameter75.Value": parameter75_value,
+                "Parameter76.Name": parameter76_name,
+                "Parameter76.Value": parameter76_value,
+                "Parameter77.Name": parameter77_name,
+                "Parameter77.Value": parameter77_value,
+                "Parameter78.Name": parameter78_name,
+                "Parameter78.Value": parameter78_value,
+                "Parameter79.Name": parameter79_name,
+                "Parameter79.Value": parameter79_value,
+                "Parameter80.Name": parameter80_name,
+                "Parameter80.Value": parameter80_value,
+                "Parameter81.Name": parameter81_name,
+                "Parameter81.Value": parameter81_value,
+                "Parameter82.Name": parameter82_name,
+                "Parameter82.Value": parameter82_value,
+                "Parameter83.Name": parameter83_name,
+                "Parameter83.Value": parameter83_value,
+                "Parameter84.Name": parameter84_name,
+                "Parameter84.Value": parameter84_value,
+                "Parameter85.Name": parameter85_name,
+                "Parameter85.Value": parameter85_value,
+                "Parameter86.Name": parameter86_name,
+                "Parameter86.Value": parameter86_value,
+                "Parameter87.Name": parameter87_name,
+                "Parameter87.Value": parameter87_value,
+                "Parameter88.Name": parameter88_name,
+                "Parameter88.Value": parameter88_value,
+                "Parameter89.Name": parameter89_name,
+                "Parameter89.Value": parameter89_value,
+                "Parameter90.Name": parameter90_name,
+                "Parameter90.Value": parameter90_value,
+                "Parameter91.Name": parameter91_name,
+                "Parameter91.Value": parameter91_value,
+                "Parameter92.Name": parameter92_name,
+                "Parameter92.Value": parameter92_value,
+                "Parameter93.Name": parameter93_name,
+                "Parameter93.Value": parameter93_value,
+                "Parameter94.Name": parameter94_name,
+                "Parameter94.Value": parameter94_value,
+                "Parameter95.Name": parameter95_name,
+                "Parameter95.Value": parameter95_value,
+                "Parameter96.Name": parameter96_name,
+                "Parameter96.Value": parameter96_value,
+                "Parameter97.Name": parameter97_name,
+                "Parameter97.Value": parameter97_value,
+                "Parameter98.Name": parameter98_name,
+                "Parameter98.Value": parameter98_value,
+                "Parameter99.Name": parameter99_name,
+                "Parameter99.Value": parameter99_value,
+            }
+        )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
+
+        payload = await self._version.create_async(
+            method="POST", uri=self._uri, data=data, headers=headers
+        )
+
+        return TranscriptionInstance(
+            self._version,
+            payload,
+            account_sid=self._solution["account_sid"],
+            call_sid=self._solution["call_sid"],
+        )
+
+    def get(self, sid: str) -> TranscriptionContext:
+        """
+        Constructs a TranscriptionContext
+
+        :param sid: The SID of the Transcription resource, or the `name` used when creating the resource
+        """
+        return TranscriptionContext(
+            self._version,
+            account_sid=self._solution["account_sid"],
+            call_sid=self._solution["call_sid"],
+            sid=sid,
+        )
+
+    def __call__(self, sid: str) -> TranscriptionContext:
+        """
+        Constructs a TranscriptionContext
+
+        :param sid: The SID of the Transcription resource, or the `name` used when creating the resource
+        """
+        return TranscriptionContext(
+            self._version,
+            account_sid=self._solution["account_sid"],
+            call_sid=self._solution["call_sid"],
+            sid=sid,
+        )
+
+    def __repr__(self) -> str:
+        """
+        Provide a friendly representation
+
+        :returns: Machine friendly representation
+        """
+        return "<Twilio.Api.V2010.TranscriptionList>"
diff --git a/twilio/rest/api/v2010/account/call/user_defined_message.py b/twilio/rest/api/v2010/account/call/user_defined_message.py
index 0e9d1f049..4b4338371 100644
--- a/twilio/rest/api/v2010/account/call/user_defined_message.py
+++ b/twilio/rest/api/v2010/account/call/user_defined_message.py
@@ -98,11 +98,10 @@ def create(
                 "IdempotencyKey": idempotency_key,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return UserDefinedMessageInstance(
@@ -130,11 +129,10 @@ async def create_async(
                 "IdempotencyKey": idempotency_key,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return UserDefinedMessageInstance(
diff --git a/twilio/rest/api/v2010/account/call/user_defined_message_subscription.py b/twilio/rest/api/v2010/account/call/user_defined_message_subscription.py
index a0b7c1833..677042bd7 100644
--- a/twilio/rest/api/v2010/account/call/user_defined_message_subscription.py
+++ b/twilio/rest/api/v2010/account/call/user_defined_message_subscription.py
@@ -206,11 +206,10 @@ def create(
                 "Method": method,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return UserDefinedMessageSubscriptionInstance(
@@ -243,11 +242,10 @@ async def create_async(
                 "Method": method,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return UserDefinedMessageSubscriptionInstance(
diff --git a/twilio/rest/api/v2010/account/conference/participant.py b/twilio/rest/api/v2010/account/conference/participant.py
index 2c7ae5932..3706cd24f 100644
--- a/twilio/rest/api/v2010/account/conference/participant.py
+++ b/twilio/rest/api/v2010/account/conference/participant.py
@@ -701,11 +701,10 @@ def create(
                 "CallToken": call_token,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ParticipantInstance(
@@ -887,11 +886,10 @@ async def create_async(
                 "CallToken": call_token,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ParticipantInstance(
diff --git a/twilio/rest/api/v2010/account/incoming_phone_number/__init__.py b/twilio/rest/api/v2010/account/incoming_phone_number/__init__.py
index 6fa4748b6..d1001a7ca 100644
--- a/twilio/rest/api/v2010/account/incoming_phone_number/__init__.py
+++ b/twilio/rest/api/v2010/account/incoming_phone_number/__init__.py
@@ -845,11 +845,10 @@ def create(
                 "AreaCode": area_code,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return IncomingPhoneNumberInstance(
@@ -948,11 +947,10 @@ async def create_async(
                 "AreaCode": area_code,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return IncomingPhoneNumberInstance(
diff --git a/twilio/rest/api/v2010/account/incoming_phone_number/assigned_add_on/__init__.py b/twilio/rest/api/v2010/account/incoming_phone_number/assigned_add_on/__init__.py
index 12c6f961e..a6ced8285 100644
--- a/twilio/rest/api/v2010/account/incoming_phone_number/assigned_add_on/__init__.py
+++ b/twilio/rest/api/v2010/account/incoming_phone_number/assigned_add_on/__init__.py
@@ -320,11 +320,10 @@ def create(self, installed_add_on_sid: str) -> AssignedAddOnInstance:
                 "InstalledAddOnSid": installed_add_on_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return AssignedAddOnInstance(
@@ -348,11 +347,10 @@ async def create_async(self, installed_add_on_sid: str) -> AssignedAddOnInstance
                 "InstalledAddOnSid": installed_add_on_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return AssignedAddOnInstance(
diff --git a/twilio/rest/api/v2010/account/incoming_phone_number/local.py b/twilio/rest/api/v2010/account/incoming_phone_number/local.py
index 454872032..ca7baa855 100644
--- a/twilio/rest/api/v2010/account/incoming_phone_number/local.py
+++ b/twilio/rest/api/v2010/account/incoming_phone_number/local.py
@@ -279,11 +279,10 @@ def create(
                 "BundleSid": bundle_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return LocalInstance(
@@ -377,11 +376,10 @@ async def create_async(
                 "BundleSid": bundle_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return LocalInstance(
diff --git a/twilio/rest/api/v2010/account/incoming_phone_number/mobile.py b/twilio/rest/api/v2010/account/incoming_phone_number/mobile.py
index 6147d4bfe..830897b17 100644
--- a/twilio/rest/api/v2010/account/incoming_phone_number/mobile.py
+++ b/twilio/rest/api/v2010/account/incoming_phone_number/mobile.py
@@ -281,11 +281,10 @@ def create(
                 "BundleSid": bundle_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return MobileInstance(
@@ -381,11 +380,10 @@ async def create_async(
                 "BundleSid": bundle_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return MobileInstance(
diff --git a/twilio/rest/api/v2010/account/incoming_phone_number/toll_free.py b/twilio/rest/api/v2010/account/incoming_phone_number/toll_free.py
index 806b7c050..8625e318c 100644
--- a/twilio/rest/api/v2010/account/incoming_phone_number/toll_free.py
+++ b/twilio/rest/api/v2010/account/incoming_phone_number/toll_free.py
@@ -281,11 +281,10 @@ def create(
                 "BundleSid": bundle_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return TollFreeInstance(
@@ -381,11 +380,10 @@ async def create_async(
                 "BundleSid": bundle_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return TollFreeInstance(
diff --git a/twilio/rest/api/v2010/account/message/__init__.py b/twilio/rest/api/v2010/account/message/__init__.py
index ff0ed8561..7eb11d388 100644
--- a/twilio/rest/api/v2010/account/message/__init__.py
+++ b/twilio/rest/api/v2010/account/message/__init__.py
@@ -560,11 +560,10 @@ def create(
                 "ContentSid": content_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return MessageInstance(
@@ -658,11 +657,10 @@ async def create_async(
                 "ContentSid": content_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return MessageInstance(
diff --git a/twilio/rest/api/v2010/account/message/feedback.py b/twilio/rest/api/v2010/account/message/feedback.py
index 2ccce06a5..797c9a733 100644
--- a/twilio/rest/api/v2010/account/message/feedback.py
+++ b/twilio/rest/api/v2010/account/message/feedback.py
@@ -111,11 +111,10 @@ def create(
                 "Outcome": outcome,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return FeedbackInstance(
@@ -141,11 +140,10 @@ async def create_async(
                 "Outcome": outcome,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return FeedbackInstance(
diff --git a/twilio/rest/api/v2010/account/new_key.py b/twilio/rest/api/v2010/account/new_key.py
index 015249ddf..fcefed5b6 100644
--- a/twilio/rest/api/v2010/account/new_key.py
+++ b/twilio/rest/api/v2010/account/new_key.py
@@ -91,11 +91,10 @@ def create(
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return NewKeyInstance(
@@ -118,11 +117,10 @@ async def create_async(
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return NewKeyInstance(
diff --git a/twilio/rest/api/v2010/account/new_signing_key.py b/twilio/rest/api/v2010/account/new_signing_key.py
index 6bfa32324..bb9b0f2e2 100644
--- a/twilio/rest/api/v2010/account/new_signing_key.py
+++ b/twilio/rest/api/v2010/account/new_signing_key.py
@@ -91,11 +91,10 @@ def create(
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return NewSigningKeyInstance(
@@ -118,11 +117,10 @@ async def create_async(
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return NewSigningKeyInstance(
diff --git a/twilio/rest/api/v2010/account/queue/__init__.py b/twilio/rest/api/v2010/account/queue/__init__.py
index 4e6c87baa..4031ba819 100644
--- a/twilio/rest/api/v2010/account/queue/__init__.py
+++ b/twilio/rest/api/v2010/account/queue/__init__.py
@@ -405,11 +405,10 @@ def create(
                 "MaxSize": max_size,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return QueueInstance(
@@ -434,11 +433,10 @@ async def create_async(
                 "MaxSize": max_size,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return QueueInstance(
diff --git a/twilio/rest/api/v2010/account/recording/__init__.py b/twilio/rest/api/v2010/account/recording/__init__.py
index bc1ddccb7..1766600ec 100644
--- a/twilio/rest/api/v2010/account/recording/__init__.py
+++ b/twilio/rest/api/v2010/account/recording/__init__.py
@@ -57,7 +57,7 @@ class Status(object):
     :ivar price: The one-time cost of creating the recording in the `price_unit` currency.
     :ivar price_unit: The currency used in the `price` property. Example: `USD`.
     :ivar status: 
-    :ivar channels: The number of channels in the final recording file. Can be: `1` or `2`. You can split a call with two legs into two separate recording channels if you record using [TwiML Dial](https://www.twilio.com/docs/voice/twiml/dial#record) or the [Outbound Rest API](https://www.twilio.com/docs/voice/make-calls#manage-your-outbound-call).
+    :ivar channels: The number of channels in the final recording file. Can be: `1` or `2`.
     :ivar source: 
     :ivar error_code: The error code that describes why the recording is `absent`. The error code is described in our [Error Dictionary](https://www.twilio.com/docs/api/errors). This value is null if the recording `status` is not `absent`.
     :ivar uri: The URI of the resource, relative to `https://api.twilio.com`.
diff --git a/twilio/rest/api/v2010/account/sip/credential_list/__init__.py b/twilio/rest/api/v2010/account/sip/credential_list/__init__.py
index 634500f8c..30bb7094e 100644
--- a/twilio/rest/api/v2010/account/sip/credential_list/__init__.py
+++ b/twilio/rest/api/v2010/account/sip/credential_list/__init__.py
@@ -375,11 +375,10 @@ def create(self, friendly_name: str) -> CredentialListInstance:
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CredentialListInstance(
@@ -400,11 +399,10 @@ async def create_async(self, friendly_name: str) -> CredentialListInstance:
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CredentialListInstance(
diff --git a/twilio/rest/api/v2010/account/sip/credential_list/credential.py b/twilio/rest/api/v2010/account/sip/credential_list/credential.py
index 3d2c24b99..1e46bfe16 100644
--- a/twilio/rest/api/v2010/account/sip/credential_list/credential.py
+++ b/twilio/rest/api/v2010/account/sip/credential_list/credential.py
@@ -374,11 +374,10 @@ def create(self, username: str, password: str) -> CredentialInstance:
                 "Password": password,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CredentialInstance(
@@ -404,11 +403,10 @@ async def create_async(self, username: str, password: str) -> CredentialInstance
                 "Password": password,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CredentialInstance(
diff --git a/twilio/rest/api/v2010/account/sip/domain/__init__.py b/twilio/rest/api/v2010/account/sip/domain/__init__.py
index b46962838..9ea726043 100644
--- a/twilio/rest/api/v2010/account/sip/domain/__init__.py
+++ b/twilio/rest/api/v2010/account/sip/domain/__init__.py
@@ -658,11 +658,10 @@ def create(
                 "EmergencyCallerSid": emergency_caller_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return DomainInstance(
@@ -724,11 +723,10 @@ async def create_async(
                 "EmergencyCallerSid": emergency_caller_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return DomainInstance(
diff --git a/twilio/rest/api/v2010/account/sip/domain/auth_types/auth_type_calls/auth_calls_credential_list_mapping.py b/twilio/rest/api/v2010/account/sip/domain/auth_types/auth_type_calls/auth_calls_credential_list_mapping.py
index 81bb5b0b0..ff6fd5136 100644
--- a/twilio/rest/api/v2010/account/sip/domain/auth_types/auth_type_calls/auth_calls_credential_list_mapping.py
+++ b/twilio/rest/api/v2010/account/sip/domain/auth_types/auth_type_calls/auth_calls_credential_list_mapping.py
@@ -288,11 +288,10 @@ def create(
                 "CredentialListSid": credential_list_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return AuthCallsCredentialListMappingInstance(
@@ -318,11 +317,10 @@ async def create_async(
                 "CredentialListSid": credential_list_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return AuthCallsCredentialListMappingInstance(
diff --git a/twilio/rest/api/v2010/account/sip/domain/auth_types/auth_type_calls/auth_calls_ip_access_control_list_mapping.py b/twilio/rest/api/v2010/account/sip/domain/auth_types/auth_type_calls/auth_calls_ip_access_control_list_mapping.py
index a690ef4b1..82099164e 100644
--- a/twilio/rest/api/v2010/account/sip/domain/auth_types/auth_type_calls/auth_calls_ip_access_control_list_mapping.py
+++ b/twilio/rest/api/v2010/account/sip/domain/auth_types/auth_type_calls/auth_calls_ip_access_control_list_mapping.py
@@ -292,11 +292,10 @@ def create(
                 "IpAccessControlListSid": ip_access_control_list_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return AuthCallsIpAccessControlListMappingInstance(
@@ -322,11 +321,10 @@ async def create_async(
                 "IpAccessControlListSid": ip_access_control_list_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return AuthCallsIpAccessControlListMappingInstance(
diff --git a/twilio/rest/api/v2010/account/sip/domain/auth_types/auth_type_registrations/auth_registrations_credential_list_mapping.py b/twilio/rest/api/v2010/account/sip/domain/auth_types/auth_type_registrations/auth_registrations_credential_list_mapping.py
index 2b03bb299..22acb7ef1 100644
--- a/twilio/rest/api/v2010/account/sip/domain/auth_types/auth_type_registrations/auth_registrations_credential_list_mapping.py
+++ b/twilio/rest/api/v2010/account/sip/domain/auth_types/auth_type_registrations/auth_registrations_credential_list_mapping.py
@@ -288,11 +288,10 @@ def create(
                 "CredentialListSid": credential_list_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return AuthRegistrationsCredentialListMappingInstance(
@@ -318,11 +317,10 @@ async def create_async(
                 "CredentialListSid": credential_list_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return AuthRegistrationsCredentialListMappingInstance(
diff --git a/twilio/rest/api/v2010/account/sip/domain/credential_list_mapping.py b/twilio/rest/api/v2010/account/sip/domain/credential_list_mapping.py
index f7838bfc5..e20e08e0f 100644
--- a/twilio/rest/api/v2010/account/sip/domain/credential_list_mapping.py
+++ b/twilio/rest/api/v2010/account/sip/domain/credential_list_mapping.py
@@ -284,11 +284,10 @@ def create(self, credential_list_sid: str) -> CredentialListMappingInstance:
                 "CredentialListSid": credential_list_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CredentialListMappingInstance(
@@ -314,11 +313,10 @@ async def create_async(
                 "CredentialListSid": credential_list_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CredentialListMappingInstance(
diff --git a/twilio/rest/api/v2010/account/sip/domain/ip_access_control_list_mapping.py b/twilio/rest/api/v2010/account/sip/domain/ip_access_control_list_mapping.py
index c619be386..607bb6ce1 100644
--- a/twilio/rest/api/v2010/account/sip/domain/ip_access_control_list_mapping.py
+++ b/twilio/rest/api/v2010/account/sip/domain/ip_access_control_list_mapping.py
@@ -290,11 +290,10 @@ def create(
                 "IpAccessControlListSid": ip_access_control_list_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return IpAccessControlListMappingInstance(
@@ -320,11 +319,10 @@ async def create_async(
                 "IpAccessControlListSid": ip_access_control_list_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return IpAccessControlListMappingInstance(
diff --git a/twilio/rest/api/v2010/account/sip/ip_access_control_list/__init__.py b/twilio/rest/api/v2010/account/sip/ip_access_control_list/__init__.py
index 7c2fd8214..cf75721a9 100644
--- a/twilio/rest/api/v2010/account/sip/ip_access_control_list/__init__.py
+++ b/twilio/rest/api/v2010/account/sip/ip_access_control_list/__init__.py
@@ -379,11 +379,10 @@ def create(self, friendly_name: str) -> IpAccessControlListInstance:
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return IpAccessControlListInstance(
@@ -404,11 +403,10 @@ async def create_async(self, friendly_name: str) -> IpAccessControlListInstance:
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return IpAccessControlListInstance(
diff --git a/twilio/rest/api/v2010/account/sip/ip_access_control_list/ip_address.py b/twilio/rest/api/v2010/account/sip/ip_access_control_list/ip_address.py
index 251bae965..106bd7400 100644
--- a/twilio/rest/api/v2010/account/sip/ip_access_control_list/ip_address.py
+++ b/twilio/rest/api/v2010/account/sip/ip_access_control_list/ip_address.py
@@ -425,11 +425,10 @@ def create(
                 "CidrPrefixLength": cidr_prefix_length,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return IpAddressInstance(
@@ -462,11 +461,10 @@ async def create_async(
                 "CidrPrefixLength": cidr_prefix_length,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return IpAddressInstance(
diff --git a/twilio/rest/api/v2010/account/token.py b/twilio/rest/api/v2010/account/token.py
index ec5acac97..6d5edcf3e 100644
--- a/twilio/rest/api/v2010/account/token.py
+++ b/twilio/rest/api/v2010/account/token.py
@@ -93,11 +93,10 @@ def create(self, ttl: Union[int, object] = values.unset) -> TokenInstance:
                 "Ttl": ttl,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return TokenInstance(
@@ -120,11 +119,10 @@ async def create_async(
                 "Ttl": ttl,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return TokenInstance(
diff --git a/twilio/rest/api/v2010/account/usage/trigger.py b/twilio/rest/api/v2010/account/usage/trigger.py
index 66e86602a..c3a1b241c 100644
--- a/twilio/rest/api/v2010/account/usage/trigger.py
+++ b/twilio/rest/api/v2010/account/usage/trigger.py
@@ -766,11 +766,10 @@ def create(
                 "TriggerBy": trigger_by,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return TriggerInstance(
@@ -812,11 +811,10 @@ async def create_async(
                 "TriggerBy": trigger_by,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return TriggerInstance(
diff --git a/twilio/rest/api/v2010/account/validation_request.py b/twilio/rest/api/v2010/account/validation_request.py
index a949df2d0..261322712 100644
--- a/twilio/rest/api/v2010/account/validation_request.py
+++ b/twilio/rest/api/v2010/account/validation_request.py
@@ -104,11 +104,10 @@ def create(
                 "StatusCallbackMethod": status_callback_method,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ValidationRequestInstance(
@@ -147,11 +146,10 @@ async def create_async(
                 "StatusCallbackMethod": status_callback_method,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ValidationRequestInstance(
diff --git a/twilio/rest/bulkexports/v1/export/export_custom_job.py b/twilio/rest/bulkexports/v1/export/export_custom_job.py
index 758398eba..9a81fb23c 100644
--- a/twilio/rest/bulkexports/v1/export/export_custom_job.py
+++ b/twilio/rest/bulkexports/v1/export/export_custom_job.py
@@ -138,11 +138,10 @@ def create(
                 "Email": email,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ExportCustomJobInstance(
@@ -181,11 +180,10 @@ async def create_async(
                 "Email": email,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ExportCustomJobInstance(
diff --git a/twilio/rest/chat/v1/credential.py b/twilio/rest/chat/v1/credential.py
index 68ec9f4b4..6bb8b3f98 100644
--- a/twilio/rest/chat/v1/credential.py
+++ b/twilio/rest/chat/v1/credential.py
@@ -420,11 +420,10 @@ def create(
                 "Secret": secret,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CredentialInstance(self._version, payload)
@@ -464,11 +463,10 @@ async def create_async(
                 "Secret": secret,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CredentialInstance(self._version, payload)
diff --git a/twilio/rest/chat/v1/service/__init__.py b/twilio/rest/chat/v1/service/__init__.py
index 1e2a5884a..71825fe57 100644
--- a/twilio/rest/chat/v1/service/__init__.py
+++ b/twilio/rest/chat/v1/service/__init__.py
@@ -1089,11 +1089,10 @@ def create(self, friendly_name: str) -> ServiceInstance:
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ServiceInstance(self._version, payload)
@@ -1112,11 +1111,10 @@ async def create_async(self, friendly_name: str) -> ServiceInstance:
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ServiceInstance(self._version, payload)
diff --git a/twilio/rest/chat/v1/service/channel/__init__.py b/twilio/rest/chat/v1/service/channel/__init__.py
index 158561394..02c42f65c 100644
--- a/twilio/rest/chat/v1/service/channel/__init__.py
+++ b/twilio/rest/chat/v1/service/channel/__init__.py
@@ -484,11 +484,10 @@ def create(
                 "Type": type,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ChannelInstance(
@@ -521,11 +520,10 @@ async def create_async(
                 "Type": type,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ChannelInstance(
diff --git a/twilio/rest/chat/v1/service/channel/invite.py b/twilio/rest/chat/v1/service/channel/invite.py
index 6beccffae..c80732a2c 100644
--- a/twilio/rest/chat/v1/service/channel/invite.py
+++ b/twilio/rest/chat/v1/service/channel/invite.py
@@ -296,11 +296,10 @@ def create(
                 "RoleSid": role_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return InviteInstance(
@@ -328,11 +327,10 @@ async def create_async(
                 "RoleSid": role_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return InviteInstance(
diff --git a/twilio/rest/chat/v1/service/channel/member.py b/twilio/rest/chat/v1/service/channel/member.py
index f0cd21448..405662f02 100644
--- a/twilio/rest/chat/v1/service/channel/member.py
+++ b/twilio/rest/chat/v1/service/channel/member.py
@@ -406,11 +406,10 @@ def create(
                 "RoleSid": role_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return MemberInstance(
@@ -438,11 +437,10 @@ async def create_async(
                 "RoleSid": role_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return MemberInstance(
diff --git a/twilio/rest/chat/v1/service/channel/message.py b/twilio/rest/chat/v1/service/channel/message.py
index f524c9238..34d9e01fb 100644
--- a/twilio/rest/chat/v1/service/channel/message.py
+++ b/twilio/rest/chat/v1/service/channel/message.py
@@ -416,11 +416,10 @@ def create(
                 "Attributes": attributes,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return MessageInstance(
@@ -453,11 +452,10 @@ async def create_async(
                 "Attributes": attributes,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return MessageInstance(
diff --git a/twilio/rest/chat/v1/service/role.py b/twilio/rest/chat/v1/service/role.py
index 1913986a4..3ed57a6ee 100644
--- a/twilio/rest/chat/v1/service/role.py
+++ b/twilio/rest/chat/v1/service/role.py
@@ -361,11 +361,10 @@ def create(
                 "Permission": serialize.map(permission, lambda e: e),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return RoleInstance(
@@ -392,11 +391,10 @@ async def create_async(
                 "Permission": serialize.map(permission, lambda e: e),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return RoleInstance(
diff --git a/twilio/rest/chat/v1/service/user/__init__.py b/twilio/rest/chat/v1/service/user/__init__.py
index b06509668..13c4b9bef 100644
--- a/twilio/rest/chat/v1/service/user/__init__.py
+++ b/twilio/rest/chat/v1/service/user/__init__.py
@@ -433,11 +433,10 @@ def create(
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return UserInstance(
@@ -470,11 +469,10 @@ async def create_async(
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return UserInstance(
diff --git a/twilio/rest/chat/v2/credential.py b/twilio/rest/chat/v2/credential.py
index 8011ed0e1..b098f6820 100644
--- a/twilio/rest/chat/v2/credential.py
+++ b/twilio/rest/chat/v2/credential.py
@@ -420,11 +420,10 @@ def create(
                 "Secret": secret,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CredentialInstance(self._version, payload)
@@ -464,11 +463,10 @@ async def create_async(
                 "Secret": secret,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CredentialInstance(self._version, payload)
diff --git a/twilio/rest/chat/v2/service/__init__.py b/twilio/rest/chat/v2/service/__init__.py
index f6fa9e2c4..376043aed 100644
--- a/twilio/rest/chat/v2/service/__init__.py
+++ b/twilio/rest/chat/v2/service/__init__.py
@@ -858,11 +858,10 @@ def create(self, friendly_name: str) -> ServiceInstance:
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ServiceInstance(self._version, payload)
@@ -881,11 +880,10 @@ async def create_async(self, friendly_name: str) -> ServiceInstance:
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ServiceInstance(self._version, payload)
diff --git a/twilio/rest/chat/v2/service/channel/__init__.py b/twilio/rest/chat/v2/service/channel/__init__.py
index 2b49faf26..b3796c30d 100644
--- a/twilio/rest/chat/v2/service/channel/__init__.py
+++ b/twilio/rest/chat/v2/service/channel/__init__.py
@@ -622,6 +622,7 @@ def create(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
@@ -675,6 +676,7 @@ async def create_async(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
diff --git a/twilio/rest/chat/v2/service/channel/invite.py b/twilio/rest/chat/v2/service/channel/invite.py
index 2c7333786..d0ef32e34 100644
--- a/twilio/rest/chat/v2/service/channel/invite.py
+++ b/twilio/rest/chat/v2/service/channel/invite.py
@@ -296,11 +296,10 @@ def create(
                 "RoleSid": role_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return InviteInstance(
@@ -328,11 +327,10 @@ async def create_async(
                 "RoleSid": role_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return InviteInstance(
diff --git a/twilio/rest/chat/v2/service/channel/member.py b/twilio/rest/chat/v2/service/channel/member.py
index c71d3e345..95e737b82 100644
--- a/twilio/rest/chat/v2/service/channel/member.py
+++ b/twilio/rest/chat/v2/service/channel/member.py
@@ -551,6 +551,7 @@ def create(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
@@ -609,6 +610,7 @@ async def create_async(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
diff --git a/twilio/rest/chat/v2/service/channel/message.py b/twilio/rest/chat/v2/service/channel/message.py
index e98f526c7..1b2892176 100644
--- a/twilio/rest/chat/v2/service/channel/message.py
+++ b/twilio/rest/chat/v2/service/channel/message.py
@@ -553,6 +553,7 @@ def create(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
@@ -609,6 +610,7 @@ async def create_async(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
diff --git a/twilio/rest/chat/v2/service/channel/webhook.py b/twilio/rest/chat/v2/service/channel/webhook.py
index ca738bac4..bc3819825 100644
--- a/twilio/rest/chat/v2/service/channel/webhook.py
+++ b/twilio/rest/chat/v2/service/channel/webhook.py
@@ -485,11 +485,10 @@ def create(
                 "Configuration.RetryCount": configuration_retry_count,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return WebhookInstance(
@@ -538,11 +537,10 @@ async def create_async(
                 "Configuration.RetryCount": configuration_retry_count,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return WebhookInstance(
diff --git a/twilio/rest/chat/v2/service/role.py b/twilio/rest/chat/v2/service/role.py
index 5bb373c9a..bcc0b6e5a 100644
--- a/twilio/rest/chat/v2/service/role.py
+++ b/twilio/rest/chat/v2/service/role.py
@@ -361,11 +361,10 @@ def create(
                 "Permission": serialize.map(permission, lambda e: e),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return RoleInstance(
@@ -392,11 +391,10 @@ async def create_async(
                 "Permission": serialize.map(permission, lambda e: e),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return RoleInstance(
diff --git a/twilio/rest/chat/v2/service/user/__init__.py b/twilio/rest/chat/v2/service/user/__init__.py
index 2c4ac5a3b..768b78876 100644
--- a/twilio/rest/chat/v2/service/user/__init__.py
+++ b/twilio/rest/chat/v2/service/user/__init__.py
@@ -491,6 +491,7 @@ def create(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
@@ -535,6 +536,7 @@ async def create_async(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
diff --git a/twilio/rest/content/v1/content/__init__.py b/twilio/rest/content/v1/content/__init__.py
index 72e1e8214..0fcbd1c19 100644
--- a/twilio/rest/content/v1/content/__init__.py
+++ b/twilio/rest/content/v1/content/__init__.py
@@ -306,7 +306,7 @@ def __init__(self, payload: Dict[str, Any], sid: Optional[str] = None):
 
         def to_dict(self):
             return {
-                "type": self.type.to_dict(),
+                "type": self.type,
                 "copy_code_text": self.copy_code_text,
             }
 
@@ -331,7 +331,7 @@ def __init__(self, payload: Dict[str, Any], sid: Optional[str] = None):
 
         def to_dict(self):
             return {
-                "type": self.type.to_dict(),
+                "type": self.type,
                 "title": self.title,
                 "url": self.url,
                 "phone": self.phone,
@@ -357,7 +357,7 @@ def __init__(self, payload: Dict[str, Any], sid: Optional[str] = None):
 
         def to_dict(self):
             return {
-                "type": self.type.to_dict(),
+                "type": self.type,
                 "title": self.title,
                 "url": self.url,
                 "phone": self.phone,
@@ -453,7 +453,7 @@ def __init__(self, payload: Dict[str, Any], sid: Optional[str] = None):
 
         def to_dict(self):
             return {
-                "type": self.type.to_dict(),
+                "type": self.type,
                 "title": self.title,
                 "id": self.id,
             }
@@ -757,7 +757,8 @@ def create(self, content_create_request: ContentCreateRequest) -> ContentInstanc
         """
         data = content_create_request.to_dict()
 
-        headers = {"Content-Type": "application/json"}
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
+        headers["Content-Type"] = "application/json"
 
         payload = self._version.create(
             method="POST", uri=self._uri, data=data, headers=headers
@@ -777,7 +778,8 @@ async def create_async(
         """
         data = content_create_request.to_dict()
 
-        headers = {"Content-Type": "application/json"}
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
+        headers["Content-Type"] = "application/json"
 
         payload = await self._version.create_async(
             method="POST", uri=self._uri, data=data, headers=headers
diff --git a/twilio/rest/content/v1/content/approval_create.py b/twilio/rest/content/v1/content/approval_create.py
index ddd922afc..6e28052e0 100644
--- a/twilio/rest/content/v1/content/approval_create.py
+++ b/twilio/rest/content/v1/content/approval_create.py
@@ -13,6 +13,7 @@
 """
 
 from typing import Any, Dict, Optional
+from twilio.base import values
 
 from twilio.base.instance_resource import InstanceResource
 from twilio.base.list_resource import ListResource
@@ -104,7 +105,8 @@ def create(
         """
         data = content_approval_request.to_dict()
 
-        headers = {"Content-Type": "application/json"}
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
+        headers["Content-Type"] = "application/json"
 
         payload = self._version.create(
             method="POST", uri=self._uri, data=data, headers=headers
@@ -126,7 +128,8 @@ async def create_async(
         """
         data = content_approval_request.to_dict()
 
-        headers = {"Content-Type": "application/json"}
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
+        headers["Content-Type"] = "application/json"
 
         payload = await self._version.create_async(
             method="POST", uri=self._uri, data=data, headers=headers
diff --git a/twilio/rest/content/v1/legacy_content.py b/twilio/rest/content/v1/legacy_content.py
index 5705c33b0..cfb4ac698 100644
--- a/twilio/rest/content/v1/legacy_content.py
+++ b/twilio/rest/content/v1/legacy_content.py
@@ -31,7 +31,7 @@ class LegacyContentInstance(InstanceResource):
     :ivar friendly_name: A string name used to describe the Content resource. Not visible to the end recipient.
     :ivar language: Two-letter (ISO 639-1) language code (e.g., en) identifying the language the Content resource is in.
     :ivar variables: Defines the default placeholder values for variables included in the Content resource. e.g. {\"1\": \"Customer_Name\"}.
-    :ivar types: The [Content types](https://www.twilio.com/docs/content/content-types-overview) (e.g. twilio/text) for this Content resource.
+    :ivar types: The [Content types](https://www.twilio.com/docs/content-api/content-types-overview) (e.g. twilio/text) for this Content resource.
     :ivar legacy_template_name: The string name of the legacy content template associated with this Content resource, unique across all template names for its account.  Only lowercase letters, numbers and underscores are allowed
     :ivar legacy_body: The string body field of the legacy content template associated with this Content resource
     :ivar url: The URL of the resource, relative to `https://content.twilio.com`.
diff --git a/twilio/rest/conversations/v1/address_configuration.py b/twilio/rest/conversations/v1/address_configuration.py
index 86cdb0806..58bd74be4 100644
--- a/twilio/rest/conversations/v1/address_configuration.py
+++ b/twilio/rest/conversations/v1/address_configuration.py
@@ -526,11 +526,10 @@ def create(
                 "AddressCountry": address_country,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return AddressConfigurationInstance(self._version, payload)
@@ -593,11 +592,10 @@ async def create_async(
                 "AddressCountry": address_country,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return AddressConfigurationInstance(self._version, payload)
diff --git a/twilio/rest/conversations/v1/conversation/__init__.py b/twilio/rest/conversations/v1/conversation/__init__.py
index 4c9b8809a..4eb14b769 100644
--- a/twilio/rest/conversations/v1/conversation/__init__.py
+++ b/twilio/rest/conversations/v1/conversation/__init__.py
@@ -639,6 +639,7 @@ def create(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
@@ -702,6 +703,7 @@ async def create_async(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
diff --git a/twilio/rest/conversations/v1/conversation/message/__init__.py b/twilio/rest/conversations/v1/conversation/message/__init__.py
index e3e9dea1b..8488bee00 100644
--- a/twilio/rest/conversations/v1/conversation/message/__init__.py
+++ b/twilio/rest/conversations/v1/conversation/message/__init__.py
@@ -566,6 +566,7 @@ def create(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
@@ -625,6 +626,7 @@ async def create_async(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
diff --git a/twilio/rest/conversations/v1/conversation/participant.py b/twilio/rest/conversations/v1/conversation/participant.py
index 499bdbf30..92f8e5de4 100644
--- a/twilio/rest/conversations/v1/conversation/participant.py
+++ b/twilio/rest/conversations/v1/conversation/participant.py
@@ -568,6 +568,7 @@ def create(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
@@ -624,6 +625,7 @@ async def create_async(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
diff --git a/twilio/rest/conversations/v1/conversation/webhook.py b/twilio/rest/conversations/v1/conversation/webhook.py
index 623887986..b961b832a 100644
--- a/twilio/rest/conversations/v1/conversation/webhook.py
+++ b/twilio/rest/conversations/v1/conversation/webhook.py
@@ -455,11 +455,10 @@ def create(
                 "Configuration.ReplayAfter": configuration_replay_after,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return WebhookInstance(
@@ -505,11 +504,10 @@ async def create_async(
                 "Configuration.ReplayAfter": configuration_replay_after,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return WebhookInstance(
diff --git a/twilio/rest/conversations/v1/credential.py b/twilio/rest/conversations/v1/credential.py
index 120710f7e..c8cd78ab0 100644
--- a/twilio/rest/conversations/v1/credential.py
+++ b/twilio/rest/conversations/v1/credential.py
@@ -432,11 +432,10 @@ def create(
                 "Secret": secret,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CredentialInstance(self._version, payload)
@@ -476,11 +475,10 @@ async def create_async(
                 "Secret": secret,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CredentialInstance(self._version, payload)
diff --git a/twilio/rest/conversations/v1/role.py b/twilio/rest/conversations/v1/role.py
index b5d4d2c6d..301063800 100644
--- a/twilio/rest/conversations/v1/role.py
+++ b/twilio/rest/conversations/v1/role.py
@@ -334,11 +334,10 @@ def create(
                 "Permission": serialize.map(permission, lambda e: e),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return RoleInstance(self._version, payload)
@@ -363,11 +362,10 @@ async def create_async(
                 "Permission": serialize.map(permission, lambda e: e),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return RoleInstance(self._version, payload)
diff --git a/twilio/rest/conversations/v1/service/__init__.py b/twilio/rest/conversations/v1/service/__init__.py
index 2a9f12090..a06afa2f7 100644
--- a/twilio/rest/conversations/v1/service/__init__.py
+++ b/twilio/rest/conversations/v1/service/__init__.py
@@ -380,11 +380,10 @@ def create(self, friendly_name: str) -> ServiceInstance:
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ServiceInstance(self._version, payload)
@@ -403,11 +402,10 @@ async def create_async(self, friendly_name: str) -> ServiceInstance:
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ServiceInstance(self._version, payload)
diff --git a/twilio/rest/conversations/v1/service/conversation/__init__.py b/twilio/rest/conversations/v1/service/conversation/__init__.py
index 69e87e5ee..139bdcb5c 100644
--- a/twilio/rest/conversations/v1/service/conversation/__init__.py
+++ b/twilio/rest/conversations/v1/service/conversation/__init__.py
@@ -675,6 +675,7 @@ def create(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
@@ -740,6 +741,7 @@ async def create_async(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
diff --git a/twilio/rest/conversations/v1/service/conversation/message/__init__.py b/twilio/rest/conversations/v1/service/conversation/message/__init__.py
index 753df1835..32f480bc5 100644
--- a/twilio/rest/conversations/v1/service/conversation/message/__init__.py
+++ b/twilio/rest/conversations/v1/service/conversation/message/__init__.py
@@ -585,6 +585,7 @@ def create(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
@@ -647,6 +648,7 @@ async def create_async(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
diff --git a/twilio/rest/conversations/v1/service/conversation/participant.py b/twilio/rest/conversations/v1/service/conversation/participant.py
index 6f6eee61e..530bce26f 100644
--- a/twilio/rest/conversations/v1/service/conversation/participant.py
+++ b/twilio/rest/conversations/v1/service/conversation/participant.py
@@ -586,6 +586,7 @@ def create(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
@@ -645,6 +646,7 @@ async def create_async(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
diff --git a/twilio/rest/conversations/v1/service/conversation/webhook.py b/twilio/rest/conversations/v1/service/conversation/webhook.py
index 83b267406..327dc9f02 100644
--- a/twilio/rest/conversations/v1/service/conversation/webhook.py
+++ b/twilio/rest/conversations/v1/service/conversation/webhook.py
@@ -473,11 +473,10 @@ def create(
                 "Configuration.ReplayAfter": configuration_replay_after,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return WebhookInstance(
@@ -526,11 +525,10 @@ async def create_async(
                 "Configuration.ReplayAfter": configuration_replay_after,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return WebhookInstance(
diff --git a/twilio/rest/conversations/v1/service/role.py b/twilio/rest/conversations/v1/service/role.py
index 3c0a0fc90..170512a2b 100644
--- a/twilio/rest/conversations/v1/service/role.py
+++ b/twilio/rest/conversations/v1/service/role.py
@@ -361,11 +361,10 @@ def create(
                 "Permission": serialize.map(permission, lambda e: e),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return RoleInstance(
@@ -392,11 +391,10 @@ async def create_async(
                 "Permission": serialize.map(permission, lambda e: e),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return RoleInstance(
diff --git a/twilio/rest/conversations/v1/service/user/__init__.py b/twilio/rest/conversations/v1/service/user/__init__.py
index 37a8d2e4f..4d4df0398 100644
--- a/twilio/rest/conversations/v1/service/user/__init__.py
+++ b/twilio/rest/conversations/v1/service/user/__init__.py
@@ -503,6 +503,7 @@ def create(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
@@ -547,6 +548,7 @@ async def create_async(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
diff --git a/twilio/rest/conversations/v1/user/__init__.py b/twilio/rest/conversations/v1/user/__init__.py
index d8017c510..a05deeda4 100644
--- a/twilio/rest/conversations/v1/user/__init__.py
+++ b/twilio/rest/conversations/v1/user/__init__.py
@@ -473,6 +473,7 @@ def create(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
@@ -515,6 +516,7 @@ async def create_async(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
diff --git a/twilio/rest/events/v1/event_type.py b/twilio/rest/events/v1/event_type.py
index 7215df8f2..a019a82a9 100644
--- a/twilio/rest/events/v1/event_type.py
+++ b/twilio/rest/events/v1/event_type.py
@@ -29,6 +29,8 @@ class EventTypeInstance(InstanceResource):
     :ivar date_created: The date that this Event Type was created, given in ISO 8601 format.
     :ivar date_updated: The date that this Event Type was updated, given in ISO 8601 format.
     :ivar description: A human readable description for this Event Type.
+    :ivar status: A string that describes how this Event Type can be used. For example: `available`, `deprecated`, `restricted`, `discontinued`. When the status is `available`, the Event Type can be used normally.
+    :ivar documentation_url: The URL to the documentation or to the most relevant Twilio Changelog entry of this Event Type.
     :ivar url: The URL of this resource.
     :ivar links:
     """
@@ -47,6 +49,8 @@ def __init__(
             payload.get("date_updated")
         )
         self.description: Optional[str] = payload.get("description")
+        self.status: Optional[str] = payload.get("status")
+        self.documentation_url: Optional[str] = payload.get("documentation_url")
         self.url: Optional[str] = payload.get("url")
         self.links: Optional[Dict[str, object]] = payload.get("links")
 
diff --git a/twilio/rest/events/v1/sink/__init__.py b/twilio/rest/events/v1/sink/__init__.py
index b09b5edec..9098c51bd 100644
--- a/twilio/rest/events/v1/sink/__init__.py
+++ b/twilio/rest/events/v1/sink/__init__.py
@@ -389,11 +389,10 @@ def create(
                 "SinkType": sink_type,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SinkInstance(self._version, payload)
@@ -421,11 +420,10 @@ async def create_async(
                 "SinkType": sink_type,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SinkInstance(self._version, payload)
diff --git a/twilio/rest/events/v1/sink/sink_test.py b/twilio/rest/events/v1/sink/sink_test.py
index adf04f582..150e7deab 100644
--- a/twilio/rest/events/v1/sink/sink_test.py
+++ b/twilio/rest/events/v1/sink/sink_test.py
@@ -13,6 +13,7 @@
 """
 
 from typing import Any, Dict, Optional
+from twilio.base import values
 
 from twilio.base.instance_resource import InstanceResource
 from twilio.base.list_resource import ListResource
@@ -69,10 +70,9 @@ def create(self) -> SinkTestInstance:
         :returns: The created SinkTestInstance
         """
 
-        payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-        )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
+
+        payload = self._version.create(method="POST", uri=self._uri, headers=headers)
 
         return SinkTestInstance(self._version, payload, sid=self._solution["sid"])
 
@@ -84,9 +84,10 @@ async def create_async(self) -> SinkTestInstance:
         :returns: The created SinkTestInstance
         """
 
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
+
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
+            method="POST", uri=self._uri, headers=headers
         )
 
         return SinkTestInstance(self._version, payload, sid=self._solution["sid"])
diff --git a/twilio/rest/events/v1/sink/sink_validate.py b/twilio/rest/events/v1/sink/sink_validate.py
index 4c24dd76b..8c6565a00 100644
--- a/twilio/rest/events/v1/sink/sink_validate.py
+++ b/twilio/rest/events/v1/sink/sink_validate.py
@@ -76,11 +76,10 @@ def create(self, test_id: str) -> SinkValidateInstance:
                 "TestId": test_id,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SinkValidateInstance(self._version, payload, sid=self._solution["sid"])
@@ -99,11 +98,10 @@ async def create_async(self, test_id: str) -> SinkValidateInstance:
                 "TestId": test_id,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SinkValidateInstance(self._version, payload, sid=self._solution["sid"])
diff --git a/twilio/rest/events/v1/subscription/__init__.py b/twilio/rest/events/v1/subscription/__init__.py
index 666b26aa7..2f6d7e91a 100644
--- a/twilio/rest/events/v1/subscription/__init__.py
+++ b/twilio/rest/events/v1/subscription/__init__.py
@@ -373,11 +373,10 @@ def create(
                 "Types": serialize.map(types, lambda e: serialize.object(e)),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SubscriptionInstance(self._version, payload)
@@ -402,11 +401,10 @@ async def create_async(
                 "Types": serialize.map(types, lambda e: serialize.object(e)),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SubscriptionInstance(self._version, payload)
diff --git a/twilio/rest/events/v1/subscription/subscribed_event.py b/twilio/rest/events/v1/subscription/subscribed_event.py
index 80c9ce149..8547fd486 100644
--- a/twilio/rest/events/v1/subscription/subscribed_event.py
+++ b/twilio/rest/events/v1/subscription/subscribed_event.py
@@ -355,11 +355,10 @@ def create(
                 "SchemaVersion": schema_version,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SubscribedEventInstance(
@@ -384,11 +383,10 @@ async def create_async(
                 "SchemaVersion": schema_version,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SubscribedEventInstance(
diff --git a/twilio/rest/flex_api/v1/assessments.py b/twilio/rest/flex_api/v1/assessments.py
index 23648b104..b24d9113d 100644
--- a/twilio/rest/flex_api/v1/assessments.py
+++ b/twilio/rest/flex_api/v1/assessments.py
@@ -326,6 +326,7 @@ def create(
         headers = values.of(
             {
                 "Authorization": authorization,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
@@ -384,6 +385,7 @@ async def create_async(
         headers = values.of(
             {
                 "Authorization": authorization,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
diff --git a/twilio/rest/flex_api/v1/channel.py b/twilio/rest/flex_api/v1/channel.py
index f362d5b01..bf4feb99e 100644
--- a/twilio/rest/flex_api/v1/channel.py
+++ b/twilio/rest/flex_api/v1/channel.py
@@ -283,11 +283,10 @@ def create(
                 "LongLived": serialize.boolean_to_string(long_lived),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ChannelInstance(self._version, payload)
@@ -336,11 +335,10 @@ async def create_async(
                 "LongLived": serialize.boolean_to_string(long_lived),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ChannelInstance(self._version, payload)
diff --git a/twilio/rest/flex_api/v1/flex_flow.py b/twilio/rest/flex_api/v1/flex_flow.py
index b11482937..531dd470b 100644
--- a/twilio/rest/flex_api/v1/flex_flow.py
+++ b/twilio/rest/flex_api/v1/flex_flow.py
@@ -622,11 +622,10 @@ def create(
                 "Integration.RetryCount": integration_retry_count,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return FlexFlowInstance(self._version, payload)
@@ -700,11 +699,10 @@ async def create_async(
                 "Integration.RetryCount": integration_retry_count,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return FlexFlowInstance(self._version, payload)
diff --git a/twilio/rest/flex_api/v1/insights_assessments_comment.py b/twilio/rest/flex_api/v1/insights_assessments_comment.py
index eed32fefb..faeb6ae62 100644
--- a/twilio/rest/flex_api/v1/insights_assessments_comment.py
+++ b/twilio/rest/flex_api/v1/insights_assessments_comment.py
@@ -134,6 +134,7 @@ def create(
         headers = values.of(
             {
                 "Authorization": authorization,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
@@ -180,6 +181,7 @@ async def create_async(
         headers = values.of(
             {
                 "Authorization": authorization,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
diff --git a/twilio/rest/flex_api/v1/insights_questionnaires.py b/twilio/rest/flex_api/v1/insights_questionnaires.py
index 807f12995..1724e2a25 100644
--- a/twilio/rest/flex_api/v1/insights_questionnaires.py
+++ b/twilio/rest/flex_api/v1/insights_questionnaires.py
@@ -454,6 +454,7 @@ def create(
         headers = values.of(
             {
                 "Authorization": authorization,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
@@ -494,6 +495,7 @@ async def create_async(
         headers = values.of(
             {
                 "Authorization": authorization,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
diff --git a/twilio/rest/flex_api/v1/insights_questionnaires_category.py b/twilio/rest/flex_api/v1/insights_questionnaires_category.py
index 28057dbc0..aba8eb8bd 100644
--- a/twilio/rest/flex_api/v1/insights_questionnaires_category.py
+++ b/twilio/rest/flex_api/v1/insights_questionnaires_category.py
@@ -313,6 +313,7 @@ def create(
         headers = values.of(
             {
                 "Authorization": authorization,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
@@ -342,6 +343,7 @@ async def create_async(
         headers = values.of(
             {
                 "Authorization": authorization,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
diff --git a/twilio/rest/flex_api/v1/insights_questionnaires_question.py b/twilio/rest/flex_api/v1/insights_questionnaires_question.py
index e4f2f4a4f..363d5c07b 100644
--- a/twilio/rest/flex_api/v1/insights_questionnaires_question.py
+++ b/twilio/rest/flex_api/v1/insights_questionnaires_question.py
@@ -395,6 +395,7 @@ def create(
         headers = values.of(
             {
                 "Authorization": authorization,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
@@ -438,6 +439,7 @@ async def create_async(
         headers = values.of(
             {
                 "Authorization": authorization,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
diff --git a/twilio/rest/flex_api/v1/insights_settings_answer_sets.py b/twilio/rest/flex_api/v1/insights_settings_answer_sets.py
index 767737da6..d426e215a 100644
--- a/twilio/rest/flex_api/v1/insights_settings_answer_sets.py
+++ b/twilio/rest/flex_api/v1/insights_settings_answer_sets.py
@@ -75,6 +75,7 @@ def fetch(
         headers = values.of(
             {
                 "Authorization": authorization,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
@@ -94,6 +95,7 @@ async def fetch_async(
         headers = values.of(
             {
                 "Authorization": authorization,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
diff --git a/twilio/rest/flex_api/v1/insights_settings_comment.py b/twilio/rest/flex_api/v1/insights_settings_comment.py
index 5d41e8d3b..548b27918 100644
--- a/twilio/rest/flex_api/v1/insights_settings_comment.py
+++ b/twilio/rest/flex_api/v1/insights_settings_comment.py
@@ -69,6 +69,7 @@ def fetch(
         headers = values.of(
             {
                 "Authorization": authorization,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
@@ -88,6 +89,7 @@ async def fetch_async(
         headers = values.of(
             {
                 "Authorization": authorization,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
diff --git a/twilio/rest/flex_api/v1/interaction/__init__.py b/twilio/rest/flex_api/v1/interaction/__init__.py
index 069b05309..468b3134e 100644
--- a/twilio/rest/flex_api/v1/interaction/__init__.py
+++ b/twilio/rest/flex_api/v1/interaction/__init__.py
@@ -218,11 +218,10 @@ def create(
                 "InteractionContextSid": interaction_context_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return InteractionInstance(self._version, payload)
@@ -250,11 +249,10 @@ async def create_async(
                 "InteractionContextSid": interaction_context_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return InteractionInstance(self._version, payload)
diff --git a/twilio/rest/flex_api/v1/interaction/interaction_channel/interaction_channel_invite.py b/twilio/rest/flex_api/v1/interaction/interaction_channel/interaction_channel_invite.py
index 5292297b9..2ffa14b1d 100644
--- a/twilio/rest/flex_api/v1/interaction/interaction_channel/interaction_channel_invite.py
+++ b/twilio/rest/flex_api/v1/interaction/interaction_channel/interaction_channel_invite.py
@@ -122,11 +122,10 @@ def create(self, routing: object) -> InteractionChannelInviteInstance:
                 "Routing": serialize.object(routing),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return InteractionChannelInviteInstance(
@@ -150,11 +149,10 @@ async def create_async(self, routing: object) -> InteractionChannelInviteInstanc
                 "Routing": serialize.object(routing),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return InteractionChannelInviteInstance(
diff --git a/twilio/rest/flex_api/v1/interaction/interaction_channel/interaction_channel_participant.py b/twilio/rest/flex_api/v1/interaction/interaction_channel/interaction_channel_participant.py
index ba9f80f9a..225ca3efa 100644
--- a/twilio/rest/flex_api/v1/interaction/interaction_channel/interaction_channel_participant.py
+++ b/twilio/rest/flex_api/v1/interaction/interaction_channel/interaction_channel_participant.py
@@ -296,11 +296,10 @@ def create(
                 "RoutingProperties": serialize.object(routing_properties),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return InteractionChannelParticipantInstance(
@@ -333,11 +332,10 @@ async def create_async(
                 "RoutingProperties": serialize.object(routing_properties),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return InteractionChannelParticipantInstance(
diff --git a/twilio/rest/flex_api/v1/plugin/__init__.py b/twilio/rest/flex_api/v1/plugin/__init__.py
index 09244d42d..b6baf8f93 100644
--- a/twilio/rest/flex_api/v1/plugin/__init__.py
+++ b/twilio/rest/flex_api/v1/plugin/__init__.py
@@ -381,6 +381,7 @@ def create(
         headers = values.of(
             {
                 "Flex-Metadata": flex_metadata,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
@@ -418,6 +419,7 @@ async def create_async(
         headers = values.of(
             {
                 "Flex-Metadata": flex_metadata,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
diff --git a/twilio/rest/flex_api/v1/plugin/plugin_versions.py b/twilio/rest/flex_api/v1/plugin/plugin_versions.py
index 1e5b5683b..3da4de3ac 100644
--- a/twilio/rest/flex_api/v1/plugin/plugin_versions.py
+++ b/twilio/rest/flex_api/v1/plugin/plugin_versions.py
@@ -283,6 +283,7 @@ def create(
         headers = values.of(
             {
                 "Flex-Metadata": flex_metadata,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
@@ -331,6 +332,7 @@ async def create_async(
         headers = values.of(
             {
                 "Flex-Metadata": flex_metadata,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
diff --git a/twilio/rest/flex_api/v1/plugin_configuration/__init__.py b/twilio/rest/flex_api/v1/plugin_configuration/__init__.py
index ebe173985..9b7669524 100644
--- a/twilio/rest/flex_api/v1/plugin_configuration/__init__.py
+++ b/twilio/rest/flex_api/v1/plugin_configuration/__init__.py
@@ -271,6 +271,7 @@ def create(
         headers = values.of(
             {
                 "Flex-Metadata": flex_metadata,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
@@ -308,6 +309,7 @@ async def create_async(
         headers = values.of(
             {
                 "Flex-Metadata": flex_metadata,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
diff --git a/twilio/rest/flex_api/v1/plugin_release.py b/twilio/rest/flex_api/v1/plugin_release.py
index f2e8efd30..e33918329 100644
--- a/twilio/rest/flex_api/v1/plugin_release.py
+++ b/twilio/rest/flex_api/v1/plugin_release.py
@@ -233,6 +233,7 @@ def create(
         headers = values.of(
             {
                 "Flex-Metadata": flex_metadata,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
@@ -262,6 +263,7 @@ async def create_async(
         headers = values.of(
             {
                 "Flex-Metadata": flex_metadata,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
diff --git a/twilio/rest/flex_api/v1/web_channel.py b/twilio/rest/flex_api/v1/web_channel.py
index ddf9c8f90..a96698f8c 100644
--- a/twilio/rest/flex_api/v1/web_channel.py
+++ b/twilio/rest/flex_api/v1/web_channel.py
@@ -363,11 +363,10 @@ def create(
                 "PreEngagementData": pre_engagement_data,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return WebChannelInstance(self._version, payload)
@@ -404,11 +403,10 @@ async def create_async(
                 "PreEngagementData": pre_engagement_data,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return WebChannelInstance(self._version, payload)
diff --git a/twilio/rest/flex_api/v2/web_channels.py b/twilio/rest/flex_api/v2/web_channels.py
index a4b7b0c31..153f59cae 100644
--- a/twilio/rest/flex_api/v2/web_channels.py
+++ b/twilio/rest/flex_api/v2/web_channels.py
@@ -86,6 +86,7 @@ def create(
         headers = values.of(
             {
                 "Ui-Version": ui_version,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
@@ -126,6 +127,7 @@ async def create_async(
         headers = values.of(
             {
                 "Ui-Version": ui_version,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
diff --git a/twilio/rest/intelligence/v2/custom_operator.py b/twilio/rest/intelligence/v2/custom_operator.py
index 6966dc5d0..af5239b12 100644
--- a/twilio/rest/intelligence/v2/custom_operator.py
+++ b/twilio/rest/intelligence/v2/custom_operator.py
@@ -384,11 +384,10 @@ def create(
                 "Config": serialize.object(config),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CustomOperatorInstance(self._version, payload)
@@ -413,11 +412,10 @@ async def create_async(
                 "Config": serialize.object(config),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CustomOperatorInstance(self._version, payload)
diff --git a/twilio/rest/intelligence/v2/service.py b/twilio/rest/intelligence/v2/service.py
index 7ded7b9b7..8f5633d0f 100644
--- a/twilio/rest/intelligence/v2/service.py
+++ b/twilio/rest/intelligence/v2/service.py
@@ -486,11 +486,10 @@ def create(
                 "WebhookHttpMethod": webhook_http_method,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ServiceInstance(self._version, payload)
@@ -536,11 +535,10 @@ async def create_async(
                 "WebhookHttpMethod": webhook_http_method,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ServiceInstance(self._version, payload)
diff --git a/twilio/rest/intelligence/v2/transcript/__init__.py b/twilio/rest/intelligence/v2/transcript/__init__.py
index 30b97f89b..bc71542bc 100644
--- a/twilio/rest/intelligence/v2/transcript/__init__.py
+++ b/twilio/rest/intelligence/v2/transcript/__init__.py
@@ -353,11 +353,10 @@ def create(
                 "MediaStartTime": serialize.iso8601_datetime(media_start_time),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return TranscriptInstance(self._version, payload)
@@ -388,11 +387,10 @@ async def create_async(
                 "MediaStartTime": serialize.iso8601_datetime(media_start_time),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return TranscriptInstance(self._version, payload)
diff --git a/twilio/rest/ip_messaging/v1/credential.py b/twilio/rest/ip_messaging/v1/credential.py
index eac8e38cf..279aef786 100644
--- a/twilio/rest/ip_messaging/v1/credential.py
+++ b/twilio/rest/ip_messaging/v1/credential.py
@@ -420,11 +420,10 @@ def create(
                 "Secret": secret,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CredentialInstance(self._version, payload)
@@ -464,11 +463,10 @@ async def create_async(
                 "Secret": secret,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CredentialInstance(self._version, payload)
diff --git a/twilio/rest/ip_messaging/v1/service/__init__.py b/twilio/rest/ip_messaging/v1/service/__init__.py
index ad4f00251..e0b52e273 100644
--- a/twilio/rest/ip_messaging/v1/service/__init__.py
+++ b/twilio/rest/ip_messaging/v1/service/__init__.py
@@ -1089,11 +1089,10 @@ def create(self, friendly_name: str) -> ServiceInstance:
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ServiceInstance(self._version, payload)
@@ -1112,11 +1111,10 @@ async def create_async(self, friendly_name: str) -> ServiceInstance:
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ServiceInstance(self._version, payload)
diff --git a/twilio/rest/ip_messaging/v1/service/channel/__init__.py b/twilio/rest/ip_messaging/v1/service/channel/__init__.py
index ef469e97f..57d2d245e 100644
--- a/twilio/rest/ip_messaging/v1/service/channel/__init__.py
+++ b/twilio/rest/ip_messaging/v1/service/channel/__init__.py
@@ -484,11 +484,10 @@ def create(
                 "Type": type,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ChannelInstance(
@@ -521,11 +520,10 @@ async def create_async(
                 "Type": type,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ChannelInstance(
diff --git a/twilio/rest/ip_messaging/v1/service/channel/invite.py b/twilio/rest/ip_messaging/v1/service/channel/invite.py
index 7078058a4..f4c3476ed 100644
--- a/twilio/rest/ip_messaging/v1/service/channel/invite.py
+++ b/twilio/rest/ip_messaging/v1/service/channel/invite.py
@@ -296,11 +296,10 @@ def create(
                 "RoleSid": role_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return InviteInstance(
@@ -328,11 +327,10 @@ async def create_async(
                 "RoleSid": role_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return InviteInstance(
diff --git a/twilio/rest/ip_messaging/v1/service/channel/member.py b/twilio/rest/ip_messaging/v1/service/channel/member.py
index c52fde5a8..4452699ce 100644
--- a/twilio/rest/ip_messaging/v1/service/channel/member.py
+++ b/twilio/rest/ip_messaging/v1/service/channel/member.py
@@ -406,11 +406,10 @@ def create(
                 "RoleSid": role_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return MemberInstance(
@@ -438,11 +437,10 @@ async def create_async(
                 "RoleSid": role_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return MemberInstance(
diff --git a/twilio/rest/ip_messaging/v1/service/channel/message.py b/twilio/rest/ip_messaging/v1/service/channel/message.py
index f9f2a2b1a..5d3f2eb57 100644
--- a/twilio/rest/ip_messaging/v1/service/channel/message.py
+++ b/twilio/rest/ip_messaging/v1/service/channel/message.py
@@ -416,11 +416,10 @@ def create(
                 "Attributes": attributes,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return MessageInstance(
@@ -453,11 +452,10 @@ async def create_async(
                 "Attributes": attributes,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return MessageInstance(
diff --git a/twilio/rest/ip_messaging/v1/service/role.py b/twilio/rest/ip_messaging/v1/service/role.py
index 935a99e18..5f5b19cfe 100644
--- a/twilio/rest/ip_messaging/v1/service/role.py
+++ b/twilio/rest/ip_messaging/v1/service/role.py
@@ -361,11 +361,10 @@ def create(
                 "Permission": serialize.map(permission, lambda e: e),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return RoleInstance(
@@ -392,11 +391,10 @@ async def create_async(
                 "Permission": serialize.map(permission, lambda e: e),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return RoleInstance(
diff --git a/twilio/rest/ip_messaging/v1/service/user/__init__.py b/twilio/rest/ip_messaging/v1/service/user/__init__.py
index ef24fa776..91364d8f9 100644
--- a/twilio/rest/ip_messaging/v1/service/user/__init__.py
+++ b/twilio/rest/ip_messaging/v1/service/user/__init__.py
@@ -433,11 +433,10 @@ def create(
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return UserInstance(
@@ -470,11 +469,10 @@ async def create_async(
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return UserInstance(
diff --git a/twilio/rest/ip_messaging/v2/credential.py b/twilio/rest/ip_messaging/v2/credential.py
index beec9fbeb..5d4e14f98 100644
--- a/twilio/rest/ip_messaging/v2/credential.py
+++ b/twilio/rest/ip_messaging/v2/credential.py
@@ -420,11 +420,10 @@ def create(
                 "Secret": secret,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CredentialInstance(self._version, payload)
@@ -464,11 +463,10 @@ async def create_async(
                 "Secret": secret,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CredentialInstance(self._version, payload)
diff --git a/twilio/rest/ip_messaging/v2/service/__init__.py b/twilio/rest/ip_messaging/v2/service/__init__.py
index b107a1197..347581162 100644
--- a/twilio/rest/ip_messaging/v2/service/__init__.py
+++ b/twilio/rest/ip_messaging/v2/service/__init__.py
@@ -858,11 +858,10 @@ def create(self, friendly_name: str) -> ServiceInstance:
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ServiceInstance(self._version, payload)
@@ -881,11 +880,10 @@ async def create_async(self, friendly_name: str) -> ServiceInstance:
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ServiceInstance(self._version, payload)
diff --git a/twilio/rest/ip_messaging/v2/service/channel/__init__.py b/twilio/rest/ip_messaging/v2/service/channel/__init__.py
index c4e03d453..29ee9ddd6 100644
--- a/twilio/rest/ip_messaging/v2/service/channel/__init__.py
+++ b/twilio/rest/ip_messaging/v2/service/channel/__init__.py
@@ -622,6 +622,7 @@ def create(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
@@ -675,6 +676,7 @@ async def create_async(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
diff --git a/twilio/rest/ip_messaging/v2/service/channel/invite.py b/twilio/rest/ip_messaging/v2/service/channel/invite.py
index 0f863d70f..a40c47a12 100644
--- a/twilio/rest/ip_messaging/v2/service/channel/invite.py
+++ b/twilio/rest/ip_messaging/v2/service/channel/invite.py
@@ -296,11 +296,10 @@ def create(
                 "RoleSid": role_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return InviteInstance(
@@ -328,11 +327,10 @@ async def create_async(
                 "RoleSid": role_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return InviteInstance(
diff --git a/twilio/rest/ip_messaging/v2/service/channel/member.py b/twilio/rest/ip_messaging/v2/service/channel/member.py
index 5de4520ed..9511a2bf6 100644
--- a/twilio/rest/ip_messaging/v2/service/channel/member.py
+++ b/twilio/rest/ip_messaging/v2/service/channel/member.py
@@ -551,6 +551,7 @@ def create(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
@@ -609,6 +610,7 @@ async def create_async(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
diff --git a/twilio/rest/ip_messaging/v2/service/channel/message.py b/twilio/rest/ip_messaging/v2/service/channel/message.py
index 057571c2a..742011711 100644
--- a/twilio/rest/ip_messaging/v2/service/channel/message.py
+++ b/twilio/rest/ip_messaging/v2/service/channel/message.py
@@ -553,6 +553,7 @@ def create(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
@@ -609,6 +610,7 @@ async def create_async(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
diff --git a/twilio/rest/ip_messaging/v2/service/channel/webhook.py b/twilio/rest/ip_messaging/v2/service/channel/webhook.py
index 633acfd51..db23dd66a 100644
--- a/twilio/rest/ip_messaging/v2/service/channel/webhook.py
+++ b/twilio/rest/ip_messaging/v2/service/channel/webhook.py
@@ -485,11 +485,10 @@ def create(
                 "Configuration.RetryCount": configuration_retry_count,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return WebhookInstance(
@@ -538,11 +537,10 @@ async def create_async(
                 "Configuration.RetryCount": configuration_retry_count,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return WebhookInstance(
diff --git a/twilio/rest/ip_messaging/v2/service/role.py b/twilio/rest/ip_messaging/v2/service/role.py
index 91fc1af93..0acf77983 100644
--- a/twilio/rest/ip_messaging/v2/service/role.py
+++ b/twilio/rest/ip_messaging/v2/service/role.py
@@ -361,11 +361,10 @@ def create(
                 "Permission": serialize.map(permission, lambda e: e),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return RoleInstance(
@@ -392,11 +391,10 @@ async def create_async(
                 "Permission": serialize.map(permission, lambda e: e),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return RoleInstance(
diff --git a/twilio/rest/ip_messaging/v2/service/user/__init__.py b/twilio/rest/ip_messaging/v2/service/user/__init__.py
index 1b3ba1b39..3af3121fa 100644
--- a/twilio/rest/ip_messaging/v2/service/user/__init__.py
+++ b/twilio/rest/ip_messaging/v2/service/user/__init__.py
@@ -491,6 +491,7 @@ def create(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
@@ -535,6 +536,7 @@ async def create_async(
         headers = values.of(
             {
                 "X-Twilio-Webhook-Enabled": x_twilio_webhook_enabled,
+                "Content-Type": "application/x-www-form-urlencoded",
             }
         )
 
diff --git a/twilio/rest/marketplace/v1/installed_add_on/__init__.py b/twilio/rest/marketplace/v1/installed_add_on/__init__.py
index 0aad53d8e..df67c01d8 100644
--- a/twilio/rest/marketplace/v1/installed_add_on/__init__.py
+++ b/twilio/rest/marketplace/v1/installed_add_on/__init__.py
@@ -410,11 +410,10 @@ def create(
                 "UniqueName": unique_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return InstalledAddOnInstance(self._version, payload)
@@ -447,11 +446,10 @@ async def create_async(
                 "UniqueName": unique_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return InstalledAddOnInstance(self._version, payload)
diff --git a/twilio/rest/marketplace/v1/installed_add_on/installed_add_on_usage.py b/twilio/rest/marketplace/v1/installed_add_on/installed_add_on_usage.py
index 6fff4979f..3f9415ed4 100644
--- a/twilio/rest/marketplace/v1/installed_add_on/installed_add_on_usage.py
+++ b/twilio/rest/marketplace/v1/installed_add_on/installed_add_on_usage.py
@@ -13,7 +13,7 @@
 """
 
 from typing import Any, Dict, List, Optional
-from twilio.base import deserialize
+from twilio.base import deserialize, values
 
 from twilio.base.instance_resource import InstanceResource
 from twilio.base.list_resource import ListResource
@@ -52,7 +52,7 @@ def __repr__(self) -> str:
 
 class InstalledAddOnUsageList(ListResource):
 
-    class CreateMarketplaceBillingUsageRequest(object):
+    class CreateBillingUsageRequest(object):
         """
         :ivar billable_items:
         """
@@ -60,9 +60,7 @@ class CreateMarketplaceBillingUsageRequest(object):
         def __init__(self, payload: Dict[str, Any], installed_add_on_sid: str):
 
             self.billable_items: Optional[
-                List[
-                    InstalledAddOnUsageList.CreateMarketplaceBillingUsageRequestBillableItems
-                ]
+                List[InstalledAddOnUsageList.CreateBillingUsageRequestBillableItems]
             ] = payload.get("billable_items")
 
         def to_dict(self):
@@ -72,7 +70,7 @@ def to_dict(self):
                 ],
             }
 
-    class CreateMarketplaceBillingUsageRequestBillableItems(object):
+    class CreateBillingUsageRequestBillableItems(object):
         """
         :ivar quantity:
         :ivar sid:
@@ -108,19 +106,19 @@ def __init__(self, version: Version, installed_add_on_sid: str):
         )
 
     def create(
-        self,
-        create_marketplace_billing_usage_request: CreateMarketplaceBillingUsageRequest,
+        self, create_billing_usage_request: CreateBillingUsageRequest
     ) -> InstalledAddOnUsageInstance:
         """
         Create the InstalledAddOnUsageInstance
 
-        :param create_marketplace_billing_usage_request:
+        :param create_billing_usage_request:
 
         :returns: The created InstalledAddOnUsageInstance
         """
-        data = create_marketplace_billing_usage_request.to_dict()
+        data = create_billing_usage_request.to_dict()
 
-        headers = {"Content-Type": "application/json"}
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
+        headers["Content-Type"] = "application/json"
 
         payload = self._version.create(
             method="POST", uri=self._uri, data=data, headers=headers
@@ -133,19 +131,19 @@ def create(
         )
 
     async def create_async(
-        self,
-        create_marketplace_billing_usage_request: CreateMarketplaceBillingUsageRequest,
+        self, create_billing_usage_request: CreateBillingUsageRequest
     ) -> InstalledAddOnUsageInstance:
         """
         Asynchronously create the InstalledAddOnUsageInstance
 
-        :param create_marketplace_billing_usage_request:
+        :param create_billing_usage_request:
 
         :returns: The created InstalledAddOnUsageInstance
         """
-        data = create_marketplace_billing_usage_request.to_dict()
+        data = create_billing_usage_request.to_dict()
 
-        headers = {"Content-Type": "application/json"}
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
+        headers["Content-Type"] = "application/json"
 
         payload = await self._version.create_async(
             method="POST", uri=self._uri, data=data, headers=headers
diff --git a/twilio/rest/messaging/v1/brand_registration/__init__.py b/twilio/rest/messaging/v1/brand_registration/__init__.py
index b02af9491..b6ac29006 100644
--- a/twilio/rest/messaging/v1/brand_registration/__init__.py
+++ b/twilio/rest/messaging/v1/brand_registration/__init__.py
@@ -390,11 +390,10 @@ def create(
                 ),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return BrandRegistrationInstance(self._version, payload)
@@ -430,11 +429,10 @@ async def create_async(
                 ),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return BrandRegistrationInstance(self._version, payload)
diff --git a/twilio/rest/messaging/v1/brand_registration/brand_registration_otp.py b/twilio/rest/messaging/v1/brand_registration/brand_registration_otp.py
index 20ce245b3..74631cea7 100644
--- a/twilio/rest/messaging/v1/brand_registration/brand_registration_otp.py
+++ b/twilio/rest/messaging/v1/brand_registration/brand_registration_otp.py
@@ -13,6 +13,7 @@
 """
 
 from typing import Any, Dict, Optional
+from twilio.base import values
 
 from twilio.base.instance_resource import InstanceResource
 from twilio.base.list_resource import ListResource
@@ -77,10 +78,9 @@ def create(self) -> BrandRegistrationOtpInstance:
         :returns: The created BrandRegistrationOtpInstance
         """
 
-        payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-        )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
+
+        payload = self._version.create(method="POST", uri=self._uri, headers=headers)
 
         return BrandRegistrationOtpInstance(
             self._version,
@@ -96,9 +96,10 @@ async def create_async(self) -> BrandRegistrationOtpInstance:
         :returns: The created BrandRegistrationOtpInstance
         """
 
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
+
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
+            method="POST", uri=self._uri, headers=headers
         )
 
         return BrandRegistrationOtpInstance(
diff --git a/twilio/rest/messaging/v1/brand_registration/brand_vetting.py b/twilio/rest/messaging/v1/brand_registration/brand_vetting.py
index c801cb12b..37fe4ed8d 100644
--- a/twilio/rest/messaging/v1/brand_registration/brand_vetting.py
+++ b/twilio/rest/messaging/v1/brand_registration/brand_vetting.py
@@ -250,11 +250,10 @@ def create(
                 "VettingId": vetting_id,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return BrandVettingInstance(
@@ -281,11 +280,10 @@ async def create_async(
                 "VettingId": vetting_id,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return BrandVettingInstance(
diff --git a/twilio/rest/messaging/v1/external_campaign.py b/twilio/rest/messaging/v1/external_campaign.py
index b70d8a4ee..88262f978 100644
--- a/twilio/rest/messaging/v1/external_campaign.py
+++ b/twilio/rest/messaging/v1/external_campaign.py
@@ -82,11 +82,10 @@ def create(
                 "MessagingServiceSid": messaging_service_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ExternalCampaignInstance(self._version, payload)
@@ -109,11 +108,10 @@ async def create_async(
                 "MessagingServiceSid": messaging_service_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ExternalCampaignInstance(self._version, payload)
diff --git a/twilio/rest/messaging/v1/service/__init__.py b/twilio/rest/messaging/v1/service/__init__.py
index 75c798f4c..0fbb3dd10 100644
--- a/twilio/rest/messaging/v1/service/__init__.py
+++ b/twilio/rest/messaging/v1/service/__init__.py
@@ -766,11 +766,10 @@ def create(
                 ),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ServiceInstance(self._version, payload)
@@ -845,11 +844,10 @@ async def create_async(
                 ),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ServiceInstance(self._version, payload)
diff --git a/twilio/rest/messaging/v1/service/alpha_sender.py b/twilio/rest/messaging/v1/service/alpha_sender.py
index 38d2d0d5e..0173c9809 100644
--- a/twilio/rest/messaging/v1/service/alpha_sender.py
+++ b/twilio/rest/messaging/v1/service/alpha_sender.py
@@ -272,11 +272,10 @@ def create(self, alpha_sender: str) -> AlphaSenderInstance:
                 "AlphaSender": alpha_sender,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return AlphaSenderInstance(
@@ -297,11 +296,10 @@ async def create_async(self, alpha_sender: str) -> AlphaSenderInstance:
                 "AlphaSender": alpha_sender,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return AlphaSenderInstance(
diff --git a/twilio/rest/messaging/v1/service/phone_number.py b/twilio/rest/messaging/v1/service/phone_number.py
index 8b0b4c090..10d30ab7f 100644
--- a/twilio/rest/messaging/v1/service/phone_number.py
+++ b/twilio/rest/messaging/v1/service/phone_number.py
@@ -274,11 +274,10 @@ def create(self, phone_number_sid: str) -> PhoneNumberInstance:
                 "PhoneNumberSid": phone_number_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return PhoneNumberInstance(
@@ -299,11 +298,10 @@ async def create_async(self, phone_number_sid: str) -> PhoneNumberInstance:
                 "PhoneNumberSid": phone_number_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return PhoneNumberInstance(
diff --git a/twilio/rest/messaging/v1/service/short_code.py b/twilio/rest/messaging/v1/service/short_code.py
index 653787589..c8f1b3e3c 100644
--- a/twilio/rest/messaging/v1/service/short_code.py
+++ b/twilio/rest/messaging/v1/service/short_code.py
@@ -272,11 +272,10 @@ def create(self, short_code_sid: str) -> ShortCodeInstance:
                 "ShortCodeSid": short_code_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ShortCodeInstance(
@@ -297,11 +296,10 @@ async def create_async(self, short_code_sid: str) -> ShortCodeInstance:
                 "ShortCodeSid": short_code_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ShortCodeInstance(
diff --git a/twilio/rest/messaging/v1/service/us_app_to_person.py b/twilio/rest/messaging/v1/service/us_app_to_person.py
index 9034e4e2e..ad31c6a4b 100644
--- a/twilio/rest/messaging/v1/service/us_app_to_person.py
+++ b/twilio/rest/messaging/v1/service/us_app_to_person.py
@@ -532,11 +532,10 @@ def create(
                 "DirectLending": serialize.boolean_to_string(direct_lending),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return UsAppToPersonInstance(
@@ -607,11 +606,10 @@ async def create_async(
                 "DirectLending": serialize.boolean_to_string(direct_lending),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return UsAppToPersonInstance(
diff --git a/twilio/rest/messaging/v1/service/us_app_to_person_usecase.py b/twilio/rest/messaging/v1/service/us_app_to_person_usecase.py
index debcf940d..1f0d85704 100644
--- a/twilio/rest/messaging/v1/service/us_app_to_person_usecase.py
+++ b/twilio/rest/messaging/v1/service/us_app_to_person_usecase.py
@@ -79,6 +79,7 @@ def fetch(
         :param brand_registration_sid: The unique string to identify the A2P brand.
         :returns: The fetched UsAppToPersonUsecaseInstance
         """
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         params = values.of(
             {
@@ -86,7 +87,9 @@ def fetch(
             }
         )
 
-        payload = self._version.fetch(method="GET", uri=self._uri, params=params)
+        payload = self._version.fetch(
+            method="GET", uri=self._uri, headers=headers, params=params
+        )
 
         return UsAppToPersonUsecaseInstance(
             self._version,
@@ -103,6 +106,7 @@ async def fetch_async(
         :param brand_registration_sid: The unique string to identify the A2P brand.
         :returns: The fetched UsAppToPersonUsecaseInstance
         """
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         params = values.of(
             {
@@ -111,7 +115,7 @@ async def fetch_async(
         )
 
         payload = await self._version.fetch_async(
-            method="GET", uri=self._uri, params=params
+            method="GET", uri=self._uri, headers=headers, params=params
         )
 
         return UsAppToPersonUsecaseInstance(
diff --git a/twilio/rest/messaging/v1/tollfree_verification.py b/twilio/rest/messaging/v1/tollfree_verification.py
index f8c639286..98887c766 100644
--- a/twilio/rest/messaging/v1/tollfree_verification.py
+++ b/twilio/rest/messaging/v1/tollfree_verification.py
@@ -757,11 +757,10 @@ def create(
                 "ExternalReferenceId": external_reference_id,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return TollfreeVerificationInstance(self._version, payload)
@@ -849,11 +848,10 @@ async def create_async(
                 "ExternalReferenceId": external_reference_id,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return TollfreeVerificationInstance(self._version, payload)
diff --git a/twilio/rest/messaging/v1/usecase.py b/twilio/rest/messaging/v1/usecase.py
index d7223f363..118c9c895 100644
--- a/twilio/rest/messaging/v1/usecase.py
+++ b/twilio/rest/messaging/v1/usecase.py
@@ -13,6 +13,7 @@
 """
 
 from typing import Any, Dict, List, Optional
+from twilio.base import values
 
 from twilio.base.instance_resource import InstanceResource
 from twilio.base.list_resource import ListResource
@@ -59,8 +60,9 @@ def fetch(self) -> UsecaseInstance:
 
         :returns: The fetched UsecaseInstance
         """
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
-        payload = self._version.fetch(method="GET", uri=self._uri)
+        payload = self._version.fetch(method="GET", uri=self._uri, headers=headers)
 
         return UsecaseInstance(self._version, payload)
 
@@ -71,8 +73,11 @@ async def fetch_async(self) -> UsecaseInstance:
 
         :returns: The fetched UsecaseInstance
         """
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
-        payload = await self._version.fetch_async(method="GET", uri=self._uri)
+        payload = await self._version.fetch_async(
+            method="GET", uri=self._uri, headers=headers
+        )
 
         return UsecaseInstance(self._version, payload)
 
diff --git a/twilio/rest/microvisor/v1/account_config.py b/twilio/rest/microvisor/v1/account_config.py
index 3d37b01cd..0abe5f928 100644
--- a/twilio/rest/microvisor/v1/account_config.py
+++ b/twilio/rest/microvisor/v1/account_config.py
@@ -313,11 +313,10 @@ def create(self, key: str, value: str) -> AccountConfigInstance:
                 "Value": value,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return AccountConfigInstance(self._version, payload)
@@ -338,11 +337,10 @@ async def create_async(self, key: str, value: str) -> AccountConfigInstance:
                 "Value": value,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return AccountConfigInstance(self._version, payload)
diff --git a/twilio/rest/microvisor/v1/account_secret.py b/twilio/rest/microvisor/v1/account_secret.py
index cca0e1d77..e85a78bc5 100644
--- a/twilio/rest/microvisor/v1/account_secret.py
+++ b/twilio/rest/microvisor/v1/account_secret.py
@@ -311,11 +311,10 @@ def create(self, key: str, value: str) -> AccountSecretInstance:
                 "Value": value,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return AccountSecretInstance(self._version, payload)
@@ -336,11 +335,10 @@ async def create_async(self, key: str, value: str) -> AccountSecretInstance:
                 "Value": value,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return AccountSecretInstance(self._version, payload)
diff --git a/twilio/rest/microvisor/v1/device/device_config.py b/twilio/rest/microvisor/v1/device/device_config.py
index 3607e971f..b4759e90b 100644
--- a/twilio/rest/microvisor/v1/device/device_config.py
+++ b/twilio/rest/microvisor/v1/device/device_config.py
@@ -342,11 +342,10 @@ def create(self, key: str, value: str) -> DeviceConfigInstance:
                 "Value": value,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return DeviceConfigInstance(
@@ -369,11 +368,10 @@ async def create_async(self, key: str, value: str) -> DeviceConfigInstance:
                 "Value": value,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return DeviceConfigInstance(
diff --git a/twilio/rest/microvisor/v1/device/device_secret.py b/twilio/rest/microvisor/v1/device/device_secret.py
index 0ab9b1c72..f89a6c0e9 100644
--- a/twilio/rest/microvisor/v1/device/device_secret.py
+++ b/twilio/rest/microvisor/v1/device/device_secret.py
@@ -340,11 +340,10 @@ def create(self, key: str, value: str) -> DeviceSecretInstance:
                 "Value": value,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return DeviceSecretInstance(
@@ -367,11 +366,10 @@ async def create_async(self, key: str, value: str) -> DeviceSecretInstance:
                 "Value": value,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return DeviceSecretInstance(
diff --git a/twilio/rest/notify/v1/credential.py b/twilio/rest/notify/v1/credential.py
index 5cb86363a..d894a9a70 100644
--- a/twilio/rest/notify/v1/credential.py
+++ b/twilio/rest/notify/v1/credential.py
@@ -420,11 +420,10 @@ def create(
                 "Secret": secret,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CredentialInstance(self._version, payload)
@@ -464,11 +463,10 @@ async def create_async(
                 "Secret": secret,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CredentialInstance(self._version, payload)
diff --git a/twilio/rest/notify/v1/service/__init__.py b/twilio/rest/notify/v1/service/__init__.py
index 0cd9adb68..2654c97c1 100644
--- a/twilio/rest/notify/v1/service/__init__.py
+++ b/twilio/rest/notify/v1/service/__init__.py
@@ -616,11 +616,10 @@ def create(
                 ),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ServiceInstance(self._version, payload)
@@ -683,11 +682,10 @@ async def create_async(
                 ),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ServiceInstance(self._version, payload)
diff --git a/twilio/rest/notify/v1/service/binding.py b/twilio/rest/notify/v1/service/binding.py
index a6b1e3f08..845f720dc 100644
--- a/twilio/rest/notify/v1/service/binding.py
+++ b/twilio/rest/notify/v1/service/binding.py
@@ -314,11 +314,10 @@ def create(
                 "Endpoint": endpoint,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return BindingInstance(
@@ -360,11 +359,10 @@ async def create_async(
                 "Endpoint": endpoint,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return BindingInstance(
diff --git a/twilio/rest/notify/v1/service/notification.py b/twilio/rest/notify/v1/service/notification.py
index e2482be10..ec31b423a 100644
--- a/twilio/rest/notify/v1/service/notification.py
+++ b/twilio/rest/notify/v1/service/notification.py
@@ -180,11 +180,10 @@ def create(
                 "Tag": serialize.map(tag, lambda e: e),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return NotificationInstance(
@@ -259,11 +258,10 @@ async def create_async(
                 "Tag": serialize.map(tag, lambda e: e),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return NotificationInstance(
diff --git a/twilio/rest/numbers/v1/__init__.py b/twilio/rest/numbers/v1/__init__.py
index 043364c3d..68f078a88 100644
--- a/twilio/rest/numbers/v1/__init__.py
+++ b/twilio/rest/numbers/v1/__init__.py
@@ -28,12 +28,10 @@
 from twilio.rest.numbers.v1.porting_webhook_configuration_delete import (
     PortingWebhookConfigurationDeleteList,
 )
-from twilio.rest.numbers.v1.porting_webhook_configuration_fetch import (
-    PortingWebhookConfigurationFetchList,
-)
 from twilio.rest.numbers.v1.signing_request_configuration import (
     SigningRequestConfigurationList,
 )
+from twilio.rest.numbers.v1.webhook import WebhookList
 
 
 class V1(Version):
@@ -58,12 +56,10 @@ def __init__(self, domain: Domain):
         self._porting_webhook_configurations_delete: Optional[
             PortingWebhookConfigurationDeleteList
         ] = None
-        self._porting_webhook_configuration_fetch: Optional[
-            PortingWebhookConfigurationFetchList
-        ] = None
         self._signing_request_configurations: Optional[
             SigningRequestConfigurationList
         ] = None
+        self._webhook: Optional[WebhookList] = None
 
     @property
     def bulk_eligibilities(self) -> BulkEligibilityList:
@@ -111,22 +107,18 @@ def porting_webhook_configurations_delete(
             )
         return self._porting_webhook_configurations_delete
 
-    @property
-    def porting_webhook_configuration_fetch(
-        self,
-    ) -> PortingWebhookConfigurationFetchList:
-        if self._porting_webhook_configuration_fetch is None:
-            self._porting_webhook_configuration_fetch = (
-                PortingWebhookConfigurationFetchList(self)
-            )
-        return self._porting_webhook_configuration_fetch
-
     @property
     def signing_request_configurations(self) -> SigningRequestConfigurationList:
         if self._signing_request_configurations is None:
             self._signing_request_configurations = SigningRequestConfigurationList(self)
         return self._signing_request_configurations
 
+    @property
+    def webhook(self) -> WebhookList:
+        if self._webhook is None:
+            self._webhook = WebhookList(self)
+        return self._webhook
+
     def __repr__(self) -> str:
         """
         Provide a friendly representation
diff --git a/twilio/rest/numbers/v1/bulk_eligibility.py b/twilio/rest/numbers/v1/bulk_eligibility.py
index 0e92b5b07..97b358b71 100644
--- a/twilio/rest/numbers/v1/bulk_eligibility.py
+++ b/twilio/rest/numbers/v1/bulk_eligibility.py
@@ -192,7 +192,8 @@ def create(
         """
         data = body.to_dict()
 
-        headers = {"Content-Type": "application/json"}
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
+        headers["Content-Type"] = "application/json"
 
         payload = self._version.create(
             method="POST", uri=self._uri, data=data, headers=headers
@@ -212,7 +213,8 @@ async def create_async(
         """
         data = body.to_dict()
 
-        headers = {"Content-Type": "application/json"}
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
+        headers["Content-Type"] = "application/json"
 
         payload = await self._version.create_async(
             method="POST", uri=self._uri, data=data, headers=headers
diff --git a/twilio/rest/numbers/v1/eligibility.py b/twilio/rest/numbers/v1/eligibility.py
index 91a2c7326..007a019f5 100644
--- a/twilio/rest/numbers/v1/eligibility.py
+++ b/twilio/rest/numbers/v1/eligibility.py
@@ -63,7 +63,8 @@ def create(self, body: Union[object, object] = values.unset) -> EligibilityInsta
         """
         data = body.to_dict()
 
-        headers = {"Content-Type": "application/json"}
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
+        headers["Content-Type"] = "application/json"
 
         payload = self._version.create(
             method="POST", uri=self._uri, data=data, headers=headers
@@ -83,7 +84,8 @@ async def create_async(
         """
         data = body.to_dict()
 
-        headers = {"Content-Type": "application/json"}
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
+        headers["Content-Type"] = "application/json"
 
         payload = await self._version.create_async(
             method="POST", uri=self._uri, data=data, headers=headers
diff --git a/twilio/rest/numbers/v1/porting_port_in.py b/twilio/rest/numbers/v1/porting_port_in.py
index e9988a7d6..50b3e328e 100644
--- a/twilio/rest/numbers/v1/porting_port_in.py
+++ b/twilio/rest/numbers/v1/porting_port_in.py
@@ -34,6 +34,7 @@ class PortingPortInInstance(InstanceResource):
     :ivar losing_carrier_information: The information for the losing carrier.
     :ivar phone_numbers: The list of phone numbers to Port in. Phone numbers are in E.164 format (e.g. +16175551212).
     :ivar documents: The list of documents SID referencing a utility bills
+    :ivar date_created:
     """
 
     def __init__(
@@ -69,6 +70,9 @@ def __init__(
             "phone_numbers"
         )
         self.documents: Optional[List[str]] = payload.get("documents")
+        self.date_created: Optional[date] = deserialize.iso8601_date(
+            payload.get("date_created")
+        )
 
         self._solution = {
             "port_in_request_sid": port_in_request_sid or self.port_in_request_sid,
@@ -250,7 +254,8 @@ def create(
         """
         data = body.to_dict()
 
-        headers = {"Content-Type": "application/json"}
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
+        headers["Content-Type"] = "application/json"
 
         payload = self._version.create(
             method="POST", uri=self._uri, data=data, headers=headers
@@ -270,7 +275,8 @@ async def create_async(
         """
         data = body.to_dict()
 
-        headers = {"Content-Type": "application/json"}
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
+        headers["Content-Type"] = "application/json"
 
         payload = await self._version.create_async(
             method="POST", uri=self._uri, data=data, headers=headers
diff --git a/twilio/rest/numbers/v1/porting_port_in_phone_number.py b/twilio/rest/numbers/v1/porting_port_in_phone_number.py
index 48b90eea4..f5d881a65 100644
--- a/twilio/rest/numbers/v1/porting_port_in_phone_number.py
+++ b/twilio/rest/numbers/v1/porting_port_in_phone_number.py
@@ -31,12 +31,15 @@ class PortingPortInPhoneNumberInstance(InstanceResource):
     :ivar date_created: The date when the phone number was created.
     :ivar country: The country of the phone number.
     :ivar missing_required_fields: The phone number is missing required fields.
-    :ivar status_last_time_updated_timestamp: The timestamp when the status was last updated.
+    :ivar last_updated: The timestamp when the status was last updated.
     :ivar phone_number: The phone number.
     :ivar portable: The phone number is portable.
     :ivar not_portability_reason: The reason why the phone number is not portable.
     :ivar not_portability_reason_code: The code of the reason why the phone number is not portable.
     :ivar port_in_phone_number_status: The status of the phone number in the port in request.
+    :ivar port_out_pin: The pin required for the losing carrier to port out the phone number.
+    :ivar rejection_reason: The rejection reason returned by the vendor.
+    :ivar rejection_reason_code: The rejection reason code returned by the vendor.
     """
 
     def __init__(
@@ -60,22 +63,27 @@ def __init__(
         self.missing_required_fields: Optional[bool] = payload.get(
             "missing_required_fields"
         )
-        self.status_last_time_updated_timestamp: Optional[datetime] = (
-            deserialize.iso8601_datetime(
-                payload.get("status_last_time_updated_timestamp")
-            )
+        self.last_updated: Optional[datetime] = deserialize.iso8601_datetime(
+            payload.get("last_updated")
         )
         self.phone_number: Optional[str] = payload.get("phone_number")
         self.portable: Optional[bool] = payload.get("portable")
         self.not_portability_reason: Optional[str] = payload.get(
             "not_portability_reason"
         )
-        self.not_portability_reason_code: Optional[str] = payload.get(
-            "not_portability_reason_code"
+        self.not_portability_reason_code: Optional[int] = deserialize.integer(
+            payload.get("not_portability_reason_code")
         )
         self.port_in_phone_number_status: Optional[str] = payload.get(
             "port_in_phone_number_status"
         )
+        self.port_out_pin: Optional[int] = deserialize.integer(
+            payload.get("port_out_pin")
+        )
+        self.rejection_reason: Optional[str] = payload.get("rejection_reason")
+        self.rejection_reason_code: Optional[int] = deserialize.integer(
+            payload.get("rejection_reason_code")
+        )
 
         self._solution = {
             "port_in_request_sid": port_in_request_sid or self.port_in_request_sid,
diff --git a/twilio/rest/numbers/v1/porting_portability.py b/twilio/rest/numbers/v1/porting_portability.py
index f1cf0cb8c..d4f92ba7d 100644
--- a/twilio/rest/numbers/v1/porting_portability.py
+++ b/twilio/rest/numbers/v1/porting_portability.py
@@ -37,8 +37,6 @@ class NumberType(object):
     :ivar not_portable_reason_code: The Portability Reason Code for the phone number if it cannot be ported into Twilio, `null` otherwise. One of `22131`, `22132`, `22130`, `22133`, `22102` or `22135`.
     :ivar number_type: 
     :ivar country: Country the phone number belongs to.
-    :ivar messaging_carrier: Current messaging carrier of the phone number
-    :ivar voice_carrier: Current voice carrier of the phone number
     :ivar url: This is the url of the request that you're trying to reach out to locate the resource.
     """
 
@@ -64,8 +62,6 @@ def __init__(
             payload.get("number_type")
         )
         self.country: Optional[str] = payload.get("country")
-        self.messaging_carrier: Optional[str] = payload.get("messaging_carrier")
-        self.voice_carrier: Optional[str] = payload.get("voice_carrier")
         self.url: Optional[str] = payload.get("url")
 
         self._solution = {
diff --git a/twilio/rest/numbers/v1/porting_webhook_configuration.py b/twilio/rest/numbers/v1/porting_webhook_configuration.py
index d1daabfd7..ea6d9bd2e 100644
--- a/twilio/rest/numbers/v1/porting_webhook_configuration.py
+++ b/twilio/rest/numbers/v1/porting_webhook_configuration.py
@@ -71,7 +71,8 @@ def create(
         """
         data = body.to_dict()
 
-        headers = {"Content-Type": "application/json"}
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
+        headers["Content-Type"] = "application/json"
 
         payload = self._version.create(
             method="POST", uri=self._uri, data=data, headers=headers
@@ -91,7 +92,8 @@ async def create_async(
         """
         data = body.to_dict()
 
-        headers = {"Content-Type": "application/json"}
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
+        headers["Content-Type"] = "application/json"
 
         payload = await self._version.create_async(
             method="POST", uri=self._uri, data=data, headers=headers
diff --git a/twilio/rest/numbers/v1/signing_request_configuration.py b/twilio/rest/numbers/v1/signing_request_configuration.py
index 1b70ba88c..541062ec6 100644
--- a/twilio/rest/numbers/v1/signing_request_configuration.py
+++ b/twilio/rest/numbers/v1/signing_request_configuration.py
@@ -79,7 +79,8 @@ def create(
         """
         data = body.to_dict()
 
-        headers = {"Content-Type": "application/json"}
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
+        headers["Content-Type"] = "application/json"
 
         payload = self._version.create(
             method="POST", uri=self._uri, data=data, headers=headers
@@ -99,7 +100,8 @@ async def create_async(
         """
         data = body.to_dict()
 
-        headers = {"Content-Type": "application/json"}
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
+        headers["Content-Type"] = "application/json"
 
         payload = await self._version.create_async(
             method="POST", uri=self._uri, data=data, headers=headers
diff --git a/twilio/rest/numbers/v1/porting_webhook_configuration_fetch.py b/twilio/rest/numbers/v1/webhook.py
similarity index 71%
rename from twilio/rest/numbers/v1/porting_webhook_configuration_fetch.py
rename to twilio/rest/numbers/v1/webhook.py
index 46c053b65..0986db12f 100644
--- a/twilio/rest/numbers/v1/porting_webhook_configuration_fetch.py
+++ b/twilio/rest/numbers/v1/webhook.py
@@ -14,14 +14,14 @@
 
 from datetime import datetime
 from typing import Any, Dict, List, Optional
-from twilio.base import deserialize
+from twilio.base import deserialize, values
 
 from twilio.base.instance_resource import InstanceResource
 from twilio.base.list_resource import ListResource
 from twilio.base.version import Version
 
 
-class PortingWebhookConfigurationFetchInstance(InstanceResource):
+class WebhookInstance(InstanceResource):
     """
     :ivar url: The URL of the webhook configuration request
     :ivar port_in_target_url: Webhook URL to send a request when a port in request or port in phone number event happens
@@ -52,14 +52,14 @@ def __repr__(self) -> str:
         :returns: Machine friendly representation
         """
 
-        return "<Twilio.Numbers.V1.PortingWebhookConfigurationFetchInstance>"
+        return "<Twilio.Numbers.V1.WebhookInstance>"
 
 
-class PortingWebhookConfigurationFetchList(ListResource):
+class WebhookList(ListResource):
 
     def __init__(self, version: Version):
         """
-        Initialize the PortingWebhookConfigurationFetchList
+        Initialize the WebhookList
 
         :param version: Version that contains the resource
 
@@ -68,29 +68,33 @@ def __init__(self, version: Version):
 
         self._uri = "/Porting/Configuration/Webhook"
 
-    def fetch(self) -> PortingWebhookConfigurationFetchInstance:
+    def fetch(self) -> WebhookInstance:
         """
-        Asynchronously fetch the PortingWebhookConfigurationFetchInstance
+        Asynchronously fetch the WebhookInstance
 
 
-        :returns: The fetched PortingWebhookConfigurationFetchInstance
+        :returns: The fetched WebhookInstance
         """
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
-        payload = self._version.fetch(method="GET", uri=self._uri)
+        payload = self._version.fetch(method="GET", uri=self._uri, headers=headers)
 
-        return PortingWebhookConfigurationFetchInstance(self._version, payload)
+        return WebhookInstance(self._version, payload)
 
-    async def fetch_async(self) -> PortingWebhookConfigurationFetchInstance:
+    async def fetch_async(self) -> WebhookInstance:
         """
-        Asynchronously fetch the PortingWebhookConfigurationFetchInstance
+        Asynchronously fetch the WebhookInstance
 
 
-        :returns: The fetched PortingWebhookConfigurationFetchInstance
+        :returns: The fetched WebhookInstance
         """
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
-        payload = await self._version.fetch_async(method="GET", uri=self._uri)
+        payload = await self._version.fetch_async(
+            method="GET", uri=self._uri, headers=headers
+        )
 
-        return PortingWebhookConfigurationFetchInstance(self._version, payload)
+        return WebhookInstance(self._version, payload)
 
     def __repr__(self) -> str:
         """
@@ -98,4 +102,4 @@ def __repr__(self) -> str:
 
         :returns: Machine friendly representation
         """
-        return "<Twilio.Numbers.V1.PortingWebhookConfigurationFetchList>"
+        return "<Twilio.Numbers.V1.WebhookList>"
diff --git a/twilio/rest/numbers/v2/authorization_document/__init__.py b/twilio/rest/numbers/v2/authorization_document/__init__.py
index 7e0a4d918..f56071878 100644
--- a/twilio/rest/numbers/v2/authorization_document/__init__.py
+++ b/twilio/rest/numbers/v2/authorization_document/__init__.py
@@ -313,11 +313,10 @@ def create(
                 "CcEmails": serialize.map(cc_emails, lambda e: e),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return AuthorizationDocumentInstance(self._version, payload)
@@ -356,11 +355,10 @@ async def create_async(
                 "CcEmails": serialize.map(cc_emails, lambda e: e),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return AuthorizationDocumentInstance(self._version, payload)
diff --git a/twilio/rest/numbers/v2/bulk_hosted_number_order.py b/twilio/rest/numbers/v2/bulk_hosted_number_order.py
index 30a57e28f..325ffe8e7 100644
--- a/twilio/rest/numbers/v2/bulk_hosted_number_order.py
+++ b/twilio/rest/numbers/v2/bulk_hosted_number_order.py
@@ -230,7 +230,8 @@ def create(
         """
         data = body.to_dict()
 
-        headers = {"Content-Type": "application/json"}
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
+        headers["Content-Type"] = "application/json"
 
         payload = self._version.create(
             method="POST", uri=self._uri, data=data, headers=headers
@@ -250,7 +251,8 @@ async def create_async(
         """
         data = body.to_dict()
 
-        headers = {"Content-Type": "application/json"}
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
+        headers["Content-Type"] = "application/json"
 
         payload = await self._version.create_async(
             method="POST", uri=self._uri, data=data, headers=headers
diff --git a/twilio/rest/numbers/v2/hosted_number_order.py b/twilio/rest/numbers/v2/hosted_number_order.py
index 2063e7a87..b2660cfc3 100644
--- a/twilio/rest/numbers/v2/hosted_number_order.py
+++ b/twilio/rest/numbers/v2/hosted_number_order.py
@@ -339,11 +339,10 @@ def create(
                 "ContactTitle": contact_title,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return HostedNumberOrderInstance(self._version, payload)
@@ -410,11 +409,10 @@ async def create_async(
                 "ContactTitle": contact_title,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return HostedNumberOrderInstance(self._version, payload)
diff --git a/twilio/rest/numbers/v2/regulatory_compliance/bundle/__init__.py b/twilio/rest/numbers/v2/regulatory_compliance/bundle/__init__.py
index d37caa0fb..ccdcbb3f3 100644
--- a/twilio/rest/numbers/v2/regulatory_compliance/bundle/__init__.py
+++ b/twilio/rest/numbers/v2/regulatory_compliance/bundle/__init__.py
@@ -514,11 +514,10 @@ def create(
                 "NumberType": number_type,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return BundleInstance(self._version, payload)
@@ -558,11 +557,10 @@ async def create_async(
                 "NumberType": number_type,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return BundleInstance(self._version, payload)
diff --git a/twilio/rest/numbers/v2/regulatory_compliance/bundle/bundle_copy.py b/twilio/rest/numbers/v2/regulatory_compliance/bundle/bundle_copy.py
index a8cf77fd1..860a6f186 100644
--- a/twilio/rest/numbers/v2/regulatory_compliance/bundle/bundle_copy.py
+++ b/twilio/rest/numbers/v2/regulatory_compliance/bundle/bundle_copy.py
@@ -136,11 +136,10 @@ def create(
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return BundleCopyInstance(
@@ -163,11 +162,10 @@ async def create_async(
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return BundleCopyInstance(
diff --git a/twilio/rest/numbers/v2/regulatory_compliance/bundle/evaluation.py b/twilio/rest/numbers/v2/regulatory_compliance/bundle/evaluation.py
index 39aae3b6e..83d061cda 100644
--- a/twilio/rest/numbers/v2/regulatory_compliance/bundle/evaluation.py
+++ b/twilio/rest/numbers/v2/regulatory_compliance/bundle/evaluation.py
@@ -231,10 +231,9 @@ def create(self) -> EvaluationInstance:
         :returns: The created EvaluationInstance
         """
 
-        payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-        )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
+
+        payload = self._version.create(method="POST", uri=self._uri, headers=headers)
 
         return EvaluationInstance(
             self._version, payload, bundle_sid=self._solution["bundle_sid"]
@@ -248,9 +247,10 @@ async def create_async(self) -> EvaluationInstance:
         :returns: The created EvaluationInstance
         """
 
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
+
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
+            method="POST", uri=self._uri, headers=headers
         )
 
         return EvaluationInstance(
diff --git a/twilio/rest/numbers/v2/regulatory_compliance/bundle/item_assignment.py b/twilio/rest/numbers/v2/regulatory_compliance/bundle/item_assignment.py
index d22fc3139..5fa77e7f9 100644
--- a/twilio/rest/numbers/v2/regulatory_compliance/bundle/item_assignment.py
+++ b/twilio/rest/numbers/v2/regulatory_compliance/bundle/item_assignment.py
@@ -270,11 +270,10 @@ def create(self, object_sid: str) -> ItemAssignmentInstance:
                 "ObjectSid": object_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ItemAssignmentInstance(
@@ -295,11 +294,10 @@ async def create_async(self, object_sid: str) -> ItemAssignmentInstance:
                 "ObjectSid": object_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ItemAssignmentInstance(
diff --git a/twilio/rest/numbers/v2/regulatory_compliance/bundle/replace_items.py b/twilio/rest/numbers/v2/regulatory_compliance/bundle/replace_items.py
index 09e2823ad..2e2bc6c29 100644
--- a/twilio/rest/numbers/v2/regulatory_compliance/bundle/replace_items.py
+++ b/twilio/rest/numbers/v2/regulatory_compliance/bundle/replace_items.py
@@ -112,11 +112,10 @@ def create(self, from_bundle_sid: str) -> ReplaceItemsInstance:
                 "FromBundleSid": from_bundle_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ReplaceItemsInstance(
@@ -137,11 +136,10 @@ async def create_async(self, from_bundle_sid: str) -> ReplaceItemsInstance:
                 "FromBundleSid": from_bundle_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ReplaceItemsInstance(
diff --git a/twilio/rest/numbers/v2/regulatory_compliance/end_user.py b/twilio/rest/numbers/v2/regulatory_compliance/end_user.py
index 3f9e5ec85..7886494d5 100644
--- a/twilio/rest/numbers/v2/regulatory_compliance/end_user.py
+++ b/twilio/rest/numbers/v2/regulatory_compliance/end_user.py
@@ -359,11 +359,10 @@ def create(
                 "Attributes": serialize.object(attributes),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return EndUserInstance(self._version, payload)
@@ -391,11 +390,10 @@ async def create_async(
                 "Attributes": serialize.object(attributes),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return EndUserInstance(self._version, payload)
diff --git a/twilio/rest/numbers/v2/regulatory_compliance/regulation.py b/twilio/rest/numbers/v2/regulatory_compliance/regulation.py
index 9d9a50881..706853bce 100644
--- a/twilio/rest/numbers/v2/regulatory_compliance/regulation.py
+++ b/twilio/rest/numbers/v2/regulatory_compliance/regulation.py
@@ -13,7 +13,7 @@
 """
 
 from typing import Any, Dict, List, Optional, Union, Iterator, AsyncIterator
-from twilio.base import values
+from twilio.base import serialize, values
 from twilio.base.instance_context import InstanceContext
 from twilio.base.instance_resource import InstanceResource
 from twilio.base.list_resource import ListResource
@@ -72,23 +72,33 @@ def _proxy(self) -> "RegulationContext":
             )
         return self._context
 
-    def fetch(self) -> "RegulationInstance":
+    def fetch(
+        self, include_constraints: Union[bool, object] = values.unset
+    ) -> "RegulationInstance":
         """
         Fetch the RegulationInstance
 
+        :param include_constraints: A boolean parameter indicating whether to include constraints or not for supporting end user, documents and their fields
 
         :returns: The fetched RegulationInstance
         """
-        return self._proxy.fetch()
+        return self._proxy.fetch(
+            include_constraints=include_constraints,
+        )
 
-    async def fetch_async(self) -> "RegulationInstance":
+    async def fetch_async(
+        self, include_constraints: Union[bool, object] = values.unset
+    ) -> "RegulationInstance":
         """
         Asynchronous coroutine to fetch the RegulationInstance
 
+        :param include_constraints: A boolean parameter indicating whether to include constraints or not for supporting end user, documents and their fields
 
         :returns: The fetched RegulationInstance
         """
-        return await self._proxy.fetch_async()
+        return await self._proxy.fetch_async(
+            include_constraints=include_constraints,
+        )
 
     def __repr__(self) -> str:
         """
@@ -117,36 +127,50 @@ def __init__(self, version: Version, sid: str):
         }
         self._uri = "/RegulatoryCompliance/Regulations/{sid}".format(**self._solution)
 
-    def fetch(self) -> RegulationInstance:
+    def fetch(
+        self, include_constraints: Union[bool, object] = values.unset
+    ) -> RegulationInstance:
         """
         Fetch the RegulationInstance
 
+        :param include_constraints: A boolean parameter indicating whether to include constraints or not for supporting end user, documents and their fields
 
         :returns: The fetched RegulationInstance
         """
 
-        payload = self._version.fetch(
-            method="GET",
-            uri=self._uri,
+        data = values.of(
+            {
+                "IncludeConstraints": serialize.boolean_to_string(include_constraints),
+            }
         )
 
+        payload = self._version.fetch(method="GET", uri=self._uri, params=data)
+
         return RegulationInstance(
             self._version,
             payload,
             sid=self._solution["sid"],
         )
 
-    async def fetch_async(self) -> RegulationInstance:
+    async def fetch_async(
+        self, include_constraints: Union[bool, object] = values.unset
+    ) -> RegulationInstance:
         """
         Asynchronous coroutine to fetch the RegulationInstance
 
+        :param include_constraints: A boolean parameter indicating whether to include constraints or not for supporting end user, documents and their fields
 
         :returns: The fetched RegulationInstance
         """
 
+        data = values.of(
+            {
+                "IncludeConstraints": serialize.boolean_to_string(include_constraints),
+            }
+        )
+
         payload = await self._version.fetch_async(
-            method="GET",
-            uri=self._uri,
+            method="GET", uri=self._uri, params=data
         )
 
         return RegulationInstance(
@@ -202,6 +226,7 @@ def stream(
         end_user_type: Union["RegulationInstance.EndUserType", object] = values.unset,
         iso_country: Union[str, object] = values.unset,
         number_type: Union[str, object] = values.unset,
+        include_constraints: Union[bool, object] = values.unset,
         limit: Optional[int] = None,
         page_size: Optional[int] = None,
     ) -> Iterator[RegulationInstance]:
@@ -214,6 +239,7 @@ def stream(
         :param &quot;RegulationInstance.EndUserType&quot; end_user_type: The type of End User the regulation requires - can be `individual` or `business`.
         :param str iso_country: The ISO country code of the phone number's country.
         :param str number_type: The type of phone number that the regulatory requiremnt is restricting.
+        :param bool include_constraints: A boolean parameter indicating whether to include constraints or not for supporting end user, documents and their fields
         :param limit: Upper limit for the number of records to return. stream()
                       guarantees to never return more than limit.  Default is no limit
         :param page_size: Number of records to fetch per request, when not set will use
@@ -228,6 +254,7 @@ def stream(
             end_user_type=end_user_type,
             iso_country=iso_country,
             number_type=number_type,
+            include_constraints=include_constraints,
             page_size=limits["page_size"],
         )
 
@@ -238,6 +265,7 @@ async def stream_async(
         end_user_type: Union["RegulationInstance.EndUserType", object] = values.unset,
         iso_country: Union[str, object] = values.unset,
         number_type: Union[str, object] = values.unset,
+        include_constraints: Union[bool, object] = values.unset,
         limit: Optional[int] = None,
         page_size: Optional[int] = None,
     ) -> AsyncIterator[RegulationInstance]:
@@ -250,6 +278,7 @@ async def stream_async(
         :param &quot;RegulationInstance.EndUserType&quot; end_user_type: The type of End User the regulation requires - can be `individual` or `business`.
         :param str iso_country: The ISO country code of the phone number's country.
         :param str number_type: The type of phone number that the regulatory requiremnt is restricting.
+        :param bool include_constraints: A boolean parameter indicating whether to include constraints or not for supporting end user, documents and their fields
         :param limit: Upper limit for the number of records to return. stream()
                       guarantees to never return more than limit.  Default is no limit
         :param page_size: Number of records to fetch per request, when not set will use
@@ -264,6 +293,7 @@ async def stream_async(
             end_user_type=end_user_type,
             iso_country=iso_country,
             number_type=number_type,
+            include_constraints=include_constraints,
             page_size=limits["page_size"],
         )
 
@@ -274,6 +304,7 @@ def list(
         end_user_type: Union["RegulationInstance.EndUserType", object] = values.unset,
         iso_country: Union[str, object] = values.unset,
         number_type: Union[str, object] = values.unset,
+        include_constraints: Union[bool, object] = values.unset,
         limit: Optional[int] = None,
         page_size: Optional[int] = None,
     ) -> List[RegulationInstance]:
@@ -285,6 +316,7 @@ def list(
         :param &quot;RegulationInstance.EndUserType&quot; end_user_type: The type of End User the regulation requires - can be `individual` or `business`.
         :param str iso_country: The ISO country code of the phone number's country.
         :param str number_type: The type of phone number that the regulatory requiremnt is restricting.
+        :param bool include_constraints: A boolean parameter indicating whether to include constraints or not for supporting end user, documents and their fields
         :param limit: Upper limit for the number of records to return. list() guarantees
                       never to return more than limit.  Default is no limit
         :param page_size: Number of records to fetch per request, when not set will use
@@ -299,6 +331,7 @@ def list(
                 end_user_type=end_user_type,
                 iso_country=iso_country,
                 number_type=number_type,
+                include_constraints=include_constraints,
                 limit=limit,
                 page_size=page_size,
             )
@@ -309,6 +342,7 @@ async def list_async(
         end_user_type: Union["RegulationInstance.EndUserType", object] = values.unset,
         iso_country: Union[str, object] = values.unset,
         number_type: Union[str, object] = values.unset,
+        include_constraints: Union[bool, object] = values.unset,
         limit: Optional[int] = None,
         page_size: Optional[int] = None,
     ) -> List[RegulationInstance]:
@@ -320,6 +354,7 @@ async def list_async(
         :param &quot;RegulationInstance.EndUserType&quot; end_user_type: The type of End User the regulation requires - can be `individual` or `business`.
         :param str iso_country: The ISO country code of the phone number's country.
         :param str number_type: The type of phone number that the regulatory requiremnt is restricting.
+        :param bool include_constraints: A boolean parameter indicating whether to include constraints or not for supporting end user, documents and their fields
         :param limit: Upper limit for the number of records to return. list() guarantees
                       never to return more than limit.  Default is no limit
         :param page_size: Number of records to fetch per request, when not set will use
@@ -335,6 +370,7 @@ async def list_async(
                 end_user_type=end_user_type,
                 iso_country=iso_country,
                 number_type=number_type,
+                include_constraints=include_constraints,
                 limit=limit,
                 page_size=page_size,
             )
@@ -345,6 +381,7 @@ def page(
         end_user_type: Union["RegulationInstance.EndUserType", object] = values.unset,
         iso_country: Union[str, object] = values.unset,
         number_type: Union[str, object] = values.unset,
+        include_constraints: Union[bool, object] = values.unset,
         page_token: Union[str, object] = values.unset,
         page_number: Union[int, object] = values.unset,
         page_size: Union[int, object] = values.unset,
@@ -356,6 +393,7 @@ def page(
         :param end_user_type: The type of End User the regulation requires - can be `individual` or `business`.
         :param iso_country: The ISO country code of the phone number's country.
         :param number_type: The type of phone number that the regulatory requiremnt is restricting.
+        :param include_constraints: A boolean parameter indicating whether to include constraints or not for supporting end user, documents and their fields
         :param page_token: PageToken provided by the API
         :param page_number: Page Number, this value is simply for client state
         :param page_size: Number of records to return, defaults to 50
@@ -367,6 +405,7 @@ def page(
                 "EndUserType": end_user_type,
                 "IsoCountry": iso_country,
                 "NumberType": number_type,
+                "IncludeConstraints": serialize.boolean_to_string(include_constraints),
                 "PageToken": page_token,
                 "Page": page_number,
                 "PageSize": page_size,
@@ -381,6 +420,7 @@ async def page_async(
         end_user_type: Union["RegulationInstance.EndUserType", object] = values.unset,
         iso_country: Union[str, object] = values.unset,
         number_type: Union[str, object] = values.unset,
+        include_constraints: Union[bool, object] = values.unset,
         page_token: Union[str, object] = values.unset,
         page_number: Union[int, object] = values.unset,
         page_size: Union[int, object] = values.unset,
@@ -392,6 +432,7 @@ async def page_async(
         :param end_user_type: The type of End User the regulation requires - can be `individual` or `business`.
         :param iso_country: The ISO country code of the phone number's country.
         :param number_type: The type of phone number that the regulatory requiremnt is restricting.
+        :param include_constraints: A boolean parameter indicating whether to include constraints or not for supporting end user, documents and their fields
         :param page_token: PageToken provided by the API
         :param page_number: Page Number, this value is simply for client state
         :param page_size: Number of records to return, defaults to 50
@@ -403,6 +444,7 @@ async def page_async(
                 "EndUserType": end_user_type,
                 "IsoCountry": iso_country,
                 "NumberType": number_type,
+                "IncludeConstraints": serialize.boolean_to_string(include_constraints),
                 "PageToken": page_token,
                 "Page": page_number,
                 "PageSize": page_size,
diff --git a/twilio/rest/numbers/v2/regulatory_compliance/supporting_document.py b/twilio/rest/numbers/v2/regulatory_compliance/supporting_document.py
index f2cd4e13d..afa6579a1 100644
--- a/twilio/rest/numbers/v2/regulatory_compliance/supporting_document.py
+++ b/twilio/rest/numbers/v2/regulatory_compliance/supporting_document.py
@@ -377,11 +377,10 @@ def create(
                 "Attributes": serialize.object(attributes),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SupportingDocumentInstance(self._version, payload)
@@ -409,11 +408,10 @@ async def create_async(
                 "Attributes": serialize.object(attributes),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SupportingDocumentInstance(self._version, payload)
diff --git a/twilio/rest/oauth/v1/authorize.py b/twilio/rest/oauth/v1/authorize.py
index 9798a73f3..19341db74 100644
--- a/twilio/rest/oauth/v1/authorize.py
+++ b/twilio/rest/oauth/v1/authorize.py
@@ -67,6 +67,7 @@ def fetch(
         :param response_type: Response Type:param client_id: The Client Identifier:param redirect_uri: The url to which response will be redirected to:param scope: The scope of the access request:param state: An opaque value which can be used to maintain state between the request and callback
         :returns: The fetched AuthorizeInstance
         """
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         params = values.of(
             {
@@ -78,7 +79,9 @@ def fetch(
             }
         )
 
-        payload = self._version.fetch(method="GET", uri=self._uri, params=params)
+        payload = self._version.fetch(
+            method="GET", uri=self._uri, headers=headers, params=params
+        )
 
         return AuthorizeInstance(self._version, payload)
 
@@ -96,6 +99,7 @@ async def fetch_async(
         :param response_type: Response Type:param client_id: The Client Identifier:param redirect_uri: The url to which response will be redirected to:param scope: The scope of the access request:param state: An opaque value which can be used to maintain state between the request and callback
         :returns: The fetched AuthorizeInstance
         """
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         params = values.of(
             {
@@ -108,7 +112,7 @@ async def fetch_async(
         )
 
         payload = await self._version.fetch_async(
-            method="GET", uri=self._uri, params=params
+            method="GET", uri=self._uri, headers=headers, params=params
         )
 
         return AuthorizeInstance(self._version, payload)
diff --git a/twilio/rest/oauth/v1/token.py b/twilio/rest/oauth/v1/token.py
index 42884f089..0d5377a9f 100644
--- a/twilio/rest/oauth/v1/token.py
+++ b/twilio/rest/oauth/v1/token.py
@@ -99,11 +99,10 @@ def create(
                 "Scope": scope,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return TokenInstance(self._version, payload)
@@ -146,11 +145,10 @@ async def create_async(
                 "Scope": scope,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return TokenInstance(self._version, payload)
diff --git a/twilio/rest/preview/deployed_devices/fleet/__init__.py b/twilio/rest/preview/deployed_devices/fleet/__init__.py
index 0f5c28446..f7321fdb2 100644
--- a/twilio/rest/preview/deployed_devices/fleet/__init__.py
+++ b/twilio/rest/preview/deployed_devices/fleet/__init__.py
@@ -434,11 +434,10 @@ def create(self, friendly_name: Union[str, object] = values.unset) -> FleetInsta
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return FleetInstance(self._version, payload)
@@ -459,11 +458,10 @@ async def create_async(
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return FleetInstance(self._version, payload)
diff --git a/twilio/rest/preview/deployed_devices/fleet/certificate.py b/twilio/rest/preview/deployed_devices/fleet/certificate.py
index 1511a0613..895bdc568 100644
--- a/twilio/rest/preview/deployed_devices/fleet/certificate.py
+++ b/twilio/rest/preview/deployed_devices/fleet/certificate.py
@@ -383,11 +383,10 @@ def create(
                 "DeviceSid": device_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CertificateInstance(
@@ -417,11 +416,10 @@ async def create_async(
                 "DeviceSid": device_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CertificateInstance(
diff --git a/twilio/rest/preview/deployed_devices/fleet/deployment.py b/twilio/rest/preview/deployed_devices/fleet/deployment.py
index 5c0d109ea..80f9f2372 100644
--- a/twilio/rest/preview/deployed_devices/fleet/deployment.py
+++ b/twilio/rest/preview/deployed_devices/fleet/deployment.py
@@ -378,11 +378,10 @@ def create(
                 "SyncServiceSid": sync_service_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return DeploymentInstance(
@@ -409,11 +408,10 @@ async def create_async(
                 "SyncServiceSid": sync_service_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return DeploymentInstance(
diff --git a/twilio/rest/preview/deployed_devices/fleet/device.py b/twilio/rest/preview/deployed_devices/fleet/device.py
index 7e9b81814..3cacc88f2 100644
--- a/twilio/rest/preview/deployed_devices/fleet/device.py
+++ b/twilio/rest/preview/deployed_devices/fleet/device.py
@@ -421,11 +421,10 @@ def create(
                 "Enabled": serialize.boolean_to_string(enabled),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return DeviceInstance(
@@ -461,11 +460,10 @@ async def create_async(
                 "Enabled": serialize.boolean_to_string(enabled),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return DeviceInstance(
diff --git a/twilio/rest/preview/deployed_devices/fleet/key.py b/twilio/rest/preview/deployed_devices/fleet/key.py
index eabfc456c..1b7c06e1f 100644
--- a/twilio/rest/preview/deployed_devices/fleet/key.py
+++ b/twilio/rest/preview/deployed_devices/fleet/key.py
@@ -380,11 +380,10 @@ def create(
                 "DeviceSid": device_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return KeyInstance(
@@ -411,11 +410,10 @@ async def create_async(
                 "DeviceSid": device_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return KeyInstance(
diff --git a/twilio/rest/preview/hosted_numbers/authorization_document/__init__.py b/twilio/rest/preview/hosted_numbers/authorization_document/__init__.py
index 162d0b11a..79fe4bedd 100644
--- a/twilio/rest/preview/hosted_numbers/authorization_document/__init__.py
+++ b/twilio/rest/preview/hosted_numbers/authorization_document/__init__.py
@@ -433,11 +433,10 @@ def create(
                 "CcEmails": serialize.map(cc_emails, lambda e: e),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return AuthorizationDocumentInstance(self._version, payload)
@@ -476,11 +475,10 @@ async def create_async(
                 "CcEmails": serialize.map(cc_emails, lambda e: e),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return AuthorizationDocumentInstance(self._version, payload)
diff --git a/twilio/rest/preview/hosted_numbers/hosted_number_order.py b/twilio/rest/preview/hosted_numbers/hosted_number_order.py
index 7e68f57b5..7010b1b3e 100644
--- a/twilio/rest/preview/hosted_numbers/hosted_number_order.py
+++ b/twilio/rest/preview/hosted_numbers/hosted_number_order.py
@@ -568,11 +568,10 @@ def create(
                 "VerificationDocumentSid": verification_document_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return HostedNumberOrderInstance(self._version, payload)
@@ -644,11 +643,10 @@ async def create_async(
                 "VerificationDocumentSid": verification_document_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return HostedNumberOrderInstance(self._version, payload)
diff --git a/twilio/rest/preview/marketplace/installed_add_on/__init__.py b/twilio/rest/preview/marketplace/installed_add_on/__init__.py
index d067f9fe7..731e84c80 100644
--- a/twilio/rest/preview/marketplace/installed_add_on/__init__.py
+++ b/twilio/rest/preview/marketplace/installed_add_on/__init__.py
@@ -387,11 +387,10 @@ def create(
                 "UniqueName": unique_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return InstalledAddOnInstance(self._version, payload)
@@ -424,11 +423,10 @@ async def create_async(
                 "UniqueName": unique_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return InstalledAddOnInstance(self._version, payload)
diff --git a/twilio/rest/preview/sync/service/__init__.py b/twilio/rest/preview/sync/service/__init__.py
index cb8cdf791..23f805a87 100644
--- a/twilio/rest/preview/sync/service/__init__.py
+++ b/twilio/rest/preview/sync/service/__init__.py
@@ -457,11 +457,10 @@ def create(
                 "AclEnabled": serialize.boolean_to_string(acl_enabled),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ServiceInstance(self._version, payload)
@@ -494,11 +493,10 @@ async def create_async(
                 "AclEnabled": serialize.boolean_to_string(acl_enabled),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ServiceInstance(self._version, payload)
diff --git a/twilio/rest/preview/sync/service/document/__init__.py b/twilio/rest/preview/sync/service/document/__init__.py
index e7ab4ae8b..c7033e2fd 100644
--- a/twilio/rest/preview/sync/service/document/__init__.py
+++ b/twilio/rest/preview/sync/service/document/__init__.py
@@ -405,11 +405,10 @@ def create(
                 "Data": serialize.object(data),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return DocumentInstance(
@@ -436,11 +435,10 @@ async def create_async(
                 "Data": serialize.object(data),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return DocumentInstance(
diff --git a/twilio/rest/preview/sync/service/sync_list/__init__.py b/twilio/rest/preview/sync/service/sync_list/__init__.py
index fcd2f28ff..4b920e019 100644
--- a/twilio/rest/preview/sync/service/sync_list/__init__.py
+++ b/twilio/rest/preview/sync/service/sync_list/__init__.py
@@ -323,11 +323,10 @@ def create(
                 "UniqueName": unique_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SyncListInstance(
@@ -350,11 +349,10 @@ async def create_async(
                 "UniqueName": unique_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SyncListInstance(
diff --git a/twilio/rest/preview/sync/service/sync_list/sync_list_item.py b/twilio/rest/preview/sync/service/sync_list/sync_list_item.py
index 0cefd6c66..b84411e8a 100644
--- a/twilio/rest/preview/sync/service/sync_list/sync_list_item.py
+++ b/twilio/rest/preview/sync/service/sync_list/sync_list_item.py
@@ -415,11 +415,10 @@ def create(self, data: object) -> SyncListItemInstance:
                 "Data": serialize.object(data),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SyncListItemInstance(
@@ -443,11 +442,10 @@ async def create_async(self, data: object) -> SyncListItemInstance:
                 "Data": serialize.object(data),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SyncListItemInstance(
diff --git a/twilio/rest/preview/sync/service/sync_map/__init__.py b/twilio/rest/preview/sync/service/sync_map/__init__.py
index 1d7993624..19c29f326 100644
--- a/twilio/rest/preview/sync/service/sync_map/__init__.py
+++ b/twilio/rest/preview/sync/service/sync_map/__init__.py
@@ -321,11 +321,10 @@ def create(self, unique_name: Union[str, object] = values.unset) -> SyncMapInsta
                 "UniqueName": unique_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SyncMapInstance(
@@ -348,11 +347,10 @@ async def create_async(
                 "UniqueName": unique_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SyncMapInstance(
diff --git a/twilio/rest/preview/sync/service/sync_map/sync_map_item.py b/twilio/rest/preview/sync/service/sync_map/sync_map_item.py
index 322c8ed22..78682fe58 100644
--- a/twilio/rest/preview/sync/service/sync_map/sync_map_item.py
+++ b/twilio/rest/preview/sync/service/sync_map/sync_map_item.py
@@ -417,11 +417,10 @@ def create(self, key: str, data: object) -> SyncMapItemInstance:
                 "Data": serialize.object(data),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SyncMapItemInstance(
@@ -447,11 +446,10 @@ async def create_async(self, key: str, data: object) -> SyncMapItemInstance:
                 "Data": serialize.object(data),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SyncMapItemInstance(
diff --git a/twilio/rest/preview/wireless/command.py b/twilio/rest/preview/wireless/command.py
index 755256bb6..b91d1969e 100644
--- a/twilio/rest/preview/wireless/command.py
+++ b/twilio/rest/preview/wireless/command.py
@@ -238,11 +238,10 @@ def create(
                 "IncludeSid": include_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CommandInstance(self._version, payload)
@@ -282,11 +281,10 @@ async def create_async(
                 "IncludeSid": include_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CommandInstance(self._version, payload)
diff --git a/twilio/rest/preview/wireless/rate_plan.py b/twilio/rest/preview/wireless/rate_plan.py
index f3484efa6..b9ca020da 100644
--- a/twilio/rest/preview/wireless/rate_plan.py
+++ b/twilio/rest/preview/wireless/rate_plan.py
@@ -395,11 +395,10 @@ def create(
                 ),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return RatePlanInstance(self._version, payload)
@@ -452,11 +451,10 @@ async def create_async(
                 ),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return RatePlanInstance(self._version, payload)
diff --git a/twilio/rest/proxy/v1/service/__init__.py b/twilio/rest/proxy/v1/service/__init__.py
index 6be2def24..7337294a6 100644
--- a/twilio/rest/proxy/v1/service/__init__.py
+++ b/twilio/rest/proxy/v1/service/__init__.py
@@ -548,11 +548,10 @@ def create(
                 "ChatInstanceSid": chat_instance_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ServiceInstance(self._version, payload)
@@ -597,11 +596,10 @@ async def create_async(
                 "ChatInstanceSid": chat_instance_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ServiceInstance(self._version, payload)
diff --git a/twilio/rest/proxy/v1/service/phone_number.py b/twilio/rest/proxy/v1/service/phone_number.py
index 366b9ba11..05b903360 100644
--- a/twilio/rest/proxy/v1/service/phone_number.py
+++ b/twilio/rest/proxy/v1/service/phone_number.py
@@ -375,11 +375,10 @@ def create(
                 "IsReserved": serialize.boolean_to_string(is_reserved),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return PhoneNumberInstance(
@@ -409,11 +408,10 @@ async def create_async(
                 "IsReserved": serialize.boolean_to_string(is_reserved),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return PhoneNumberInstance(
diff --git a/twilio/rest/proxy/v1/service/session/__init__.py b/twilio/rest/proxy/v1/service/session/__init__.py
index 26ff17788..cfd547b1e 100644
--- a/twilio/rest/proxy/v1/service/session/__init__.py
+++ b/twilio/rest/proxy/v1/service/session/__init__.py
@@ -486,11 +486,10 @@ def create(
                 ),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SessionInstance(
@@ -531,11 +530,10 @@ async def create_async(
                 ),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SessionInstance(
diff --git a/twilio/rest/proxy/v1/service/session/participant/__init__.py b/twilio/rest/proxy/v1/service/session/participant/__init__.py
index 266396f08..e2eb3eaae 100644
--- a/twilio/rest/proxy/v1/service/session/participant/__init__.py
+++ b/twilio/rest/proxy/v1/service/session/participant/__init__.py
@@ -340,11 +340,10 @@ def create(
                 "ProxyIdentifierSid": proxy_identifier_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ParticipantInstance(
@@ -380,11 +379,10 @@ async def create_async(
                 "ProxyIdentifierSid": proxy_identifier_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ParticipantInstance(
diff --git a/twilio/rest/proxy/v1/service/session/participant/message_interaction.py b/twilio/rest/proxy/v1/service/session/participant/message_interaction.py
index b260b4693..55ff64074 100644
--- a/twilio/rest/proxy/v1/service/session/participant/message_interaction.py
+++ b/twilio/rest/proxy/v1/service/session/participant/message_interaction.py
@@ -332,11 +332,10 @@ def create(
                 "MediaUrl": serialize.map(media_url, lambda e: e),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return MessageInteractionInstance(
@@ -367,11 +366,10 @@ async def create_async(
                 "MediaUrl": serialize.map(media_url, lambda e: e),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return MessageInteractionInstance(
diff --git a/twilio/rest/proxy/v1/service/short_code.py b/twilio/rest/proxy/v1/service/short_code.py
index 712d6f82f..e26514bff 100644
--- a/twilio/rest/proxy/v1/service/short_code.py
+++ b/twilio/rest/proxy/v1/service/short_code.py
@@ -360,11 +360,10 @@ def create(self, sid: str) -> ShortCodeInstance:
                 "Sid": sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ShortCodeInstance(
@@ -385,11 +384,10 @@ async def create_async(self, sid: str) -> ShortCodeInstance:
                 "Sid": sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ShortCodeInstance(
diff --git a/twilio/rest/serverless/v1/service/__init__.py b/twilio/rest/serverless/v1/service/__init__.py
index 0fe404c8f..1658e671f 100644
--- a/twilio/rest/serverless/v1/service/__init__.py
+++ b/twilio/rest/serverless/v1/service/__init__.py
@@ -460,11 +460,10 @@ def create(
                 "UiEditable": serialize.boolean_to_string(ui_editable),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ServiceInstance(self._version, payload)
@@ -495,11 +494,10 @@ async def create_async(
                 "UiEditable": serialize.boolean_to_string(ui_editable),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ServiceInstance(self._version, payload)
diff --git a/twilio/rest/serverless/v1/service/asset/__init__.py b/twilio/rest/serverless/v1/service/asset/__init__.py
index 2049c9d46..4e413db1d 100644
--- a/twilio/rest/serverless/v1/service/asset/__init__.py
+++ b/twilio/rest/serverless/v1/service/asset/__init__.py
@@ -371,11 +371,10 @@ def create(self, friendly_name: str) -> AssetInstance:
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return AssetInstance(
@@ -396,11 +395,10 @@ async def create_async(self, friendly_name: str) -> AssetInstance:
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return AssetInstance(
diff --git a/twilio/rest/serverless/v1/service/build/__init__.py b/twilio/rest/serverless/v1/service/build/__init__.py
index fa7a7947a..90e5ccec4 100644
--- a/twilio/rest/serverless/v1/service/build/__init__.py
+++ b/twilio/rest/serverless/v1/service/build/__init__.py
@@ -313,10 +313,12 @@ def create(self, asset_versions: Union[List[str], object]=values.unset, function
             'Dependencies': dependencies,
             'Runtime': runtime,
         })
+        headers = values.of({
+                'Content-Type': 'application/x-www-form-urlencoded'
+            })
         
         
-        
-        payload = self._version.create(method='POST', uri=self._uri, data=data,)
+        payload = self._version.create(method='POST', uri=self._uri, data=data, headers=headers)
 
         return BuildInstance(self._version, payload, service_sid=self._solution['service_sid'])
 
@@ -338,10 +340,12 @@ async def create_async(self, asset_versions: Union[List[str], object]=values.uns
             'Dependencies': dependencies,
             'Runtime': runtime,
         })
+        headers = values.of({
+                'Content-Type': 'application/x-www-form-urlencoded'
+            })
         
         
-        
-        payload = await self._version.create_async(method='POST', uri=self._uri, data=data,)
+        payload = await self._version.create_async(method='POST', uri=self._uri, data=data, headers=headers)
 
         return BuildInstance(self._version, payload, service_sid=self._solution['service_sid'])
     
diff --git a/twilio/rest/serverless/v1/service/environment/__init__.py b/twilio/rest/serverless/v1/service/environment/__init__.py
index 46b7ddacf..e9df6ecb2 100644
--- a/twilio/rest/serverless/v1/service/environment/__init__.py
+++ b/twilio/rest/serverless/v1/service/environment/__init__.py
@@ -349,11 +349,10 @@ def create(
                 "DomainSuffix": domain_suffix,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return EnvironmentInstance(
@@ -378,11 +377,10 @@ async def create_async(
                 "DomainSuffix": domain_suffix,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return EnvironmentInstance(
diff --git a/twilio/rest/serverless/v1/service/environment/deployment.py b/twilio/rest/serverless/v1/service/environment/deployment.py
index 1ff896f93..63ef1b461 100644
--- a/twilio/rest/serverless/v1/service/environment/deployment.py
+++ b/twilio/rest/serverless/v1/service/environment/deployment.py
@@ -250,11 +250,10 @@ def create(
                 "BuildSid": build_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return DeploymentInstance(
@@ -280,11 +279,10 @@ async def create_async(
                 "BuildSid": build_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return DeploymentInstance(
diff --git a/twilio/rest/serverless/v1/service/environment/variable.py b/twilio/rest/serverless/v1/service/environment/variable.py
index f69c129f8..99027536f 100644
--- a/twilio/rest/serverless/v1/service/environment/variable.py
+++ b/twilio/rest/serverless/v1/service/environment/variable.py
@@ -398,11 +398,10 @@ def create(self, key: str, value: str) -> VariableInstance:
                 "Value": value,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return VariableInstance(
@@ -428,11 +427,10 @@ async def create_async(self, key: str, value: str) -> VariableInstance:
                 "Value": value,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return VariableInstance(
diff --git a/twilio/rest/serverless/v1/service/function/__init__.py b/twilio/rest/serverless/v1/service/function/__init__.py
index 71bbad846..25a3ef935 100644
--- a/twilio/rest/serverless/v1/service/function/__init__.py
+++ b/twilio/rest/serverless/v1/service/function/__init__.py
@@ -373,11 +373,10 @@ def create(self, friendly_name: str) -> FunctionInstance:
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return FunctionInstance(
@@ -398,11 +397,10 @@ async def create_async(self, friendly_name: str) -> FunctionInstance:
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return FunctionInstance(
diff --git a/twilio/rest/studio/v1/flow/engagement/__init__.py b/twilio/rest/studio/v1/flow/engagement/__init__.py
index f6d95abd5..db0c846e5 100644
--- a/twilio/rest/studio/v1/flow/engagement/__init__.py
+++ b/twilio/rest/studio/v1/flow/engagement/__init__.py
@@ -336,11 +336,10 @@ def create(
                 "Parameters": serialize.object(parameters),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return EngagementInstance(
@@ -367,11 +366,10 @@ async def create_async(
                 "Parameters": serialize.object(parameters),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return EngagementInstance(
diff --git a/twilio/rest/studio/v1/flow/execution/__init__.py b/twilio/rest/studio/v1/flow/execution/__init__.py
index 57239e515..6a32cb302 100644
--- a/twilio/rest/studio/v1/flow/execution/__init__.py
+++ b/twilio/rest/studio/v1/flow/execution/__init__.py
@@ -416,11 +416,10 @@ def create(
                 "Parameters": serialize.object(parameters),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ExecutionInstance(
@@ -447,11 +446,10 @@ async def create_async(
                 "Parameters": serialize.object(parameters),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ExecutionInstance(
diff --git a/twilio/rest/studio/v2/flow/__init__.py b/twilio/rest/studio/v2/flow/__init__.py
index 21138d29c..057c94969 100644
--- a/twilio/rest/studio/v2/flow/__init__.py
+++ b/twilio/rest/studio/v2/flow/__init__.py
@@ -464,11 +464,10 @@ def create(
                 "CommitMessage": commit_message,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return FlowInstance(self._version, payload)
@@ -499,11 +498,10 @@ async def create_async(
                 "CommitMessage": commit_message,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return FlowInstance(self._version, payload)
diff --git a/twilio/rest/studio/v2/flow/execution/__init__.py b/twilio/rest/studio/v2/flow/execution/__init__.py
index 38d3b2b53..18dcbf062 100644
--- a/twilio/rest/studio/v2/flow/execution/__init__.py
+++ b/twilio/rest/studio/v2/flow/execution/__init__.py
@@ -414,11 +414,10 @@ def create(
                 "Parameters": serialize.object(parameters),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ExecutionInstance(
@@ -445,11 +444,10 @@ async def create_async(
                 "Parameters": serialize.object(parameters),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ExecutionInstance(
diff --git a/twilio/rest/studio/v2/flow_validate.py b/twilio/rest/studio/v2/flow_validate.py
index 43f226e15..34f37e152 100644
--- a/twilio/rest/studio/v2/flow_validate.py
+++ b/twilio/rest/studio/v2/flow_validate.py
@@ -84,11 +84,10 @@ def update(
                 "CommitMessage": commit_message,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.update(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return FlowValidateInstance(self._version, payload)
@@ -119,11 +118,10 @@ async def update_async(
                 "CommitMessage": commit_message,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.update_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return FlowValidateInstance(self._version, payload)
diff --git a/twilio/rest/supersim/v1/esim_profile.py b/twilio/rest/supersim/v1/esim_profile.py
index 847bcae33..7e176bba7 100644
--- a/twilio/rest/supersim/v1/esim_profile.py
+++ b/twilio/rest/supersim/v1/esim_profile.py
@@ -244,11 +244,10 @@ def create(
                 "Eid": eid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return EsimProfileInstance(self._version, payload)
@@ -279,11 +278,10 @@ async def create_async(
                 "Eid": eid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return EsimProfileInstance(self._version, payload)
diff --git a/twilio/rest/supersim/v1/fleet.py b/twilio/rest/supersim/v1/fleet.py
index 2003eb77b..2b9fbff44 100644
--- a/twilio/rest/supersim/v1/fleet.py
+++ b/twilio/rest/supersim/v1/fleet.py
@@ -412,11 +412,10 @@ def create(
                 "SmsCommandsMethod": sms_commands_method,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return FleetInstance(self._version, payload)
@@ -462,11 +461,10 @@ async def create_async(
                 "SmsCommandsMethod": sms_commands_method,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return FleetInstance(self._version, payload)
diff --git a/twilio/rest/supersim/v1/ip_command.py b/twilio/rest/supersim/v1/ip_command.py
index b7610efec..db6ac2643 100644
--- a/twilio/rest/supersim/v1/ip_command.py
+++ b/twilio/rest/supersim/v1/ip_command.py
@@ -260,11 +260,10 @@ def create(
                 "CallbackMethod": callback_method,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return IpCommandInstance(self._version, payload)
@@ -301,11 +300,10 @@ async def create_async(
                 "CallbackMethod": callback_method,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return IpCommandInstance(self._version, payload)
diff --git a/twilio/rest/supersim/v1/network_access_profile/__init__.py b/twilio/rest/supersim/v1/network_access_profile/__init__.py
index d0b537469..4937ac50d 100644
--- a/twilio/rest/supersim/v1/network_access_profile/__init__.py
+++ b/twilio/rest/supersim/v1/network_access_profile/__init__.py
@@ -319,11 +319,10 @@ def create(
                 "Networks": serialize.map(networks, lambda e: e),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return NetworkAccessProfileInstance(self._version, payload)
@@ -348,11 +347,10 @@ async def create_async(
                 "Networks": serialize.map(networks, lambda e: e),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return NetworkAccessProfileInstance(self._version, payload)
diff --git a/twilio/rest/supersim/v1/network_access_profile/network_access_profile_network.py b/twilio/rest/supersim/v1/network_access_profile/network_access_profile_network.py
index 50a259550..cbe4d5c0e 100644
--- a/twilio/rest/supersim/v1/network_access_profile/network_access_profile_network.py
+++ b/twilio/rest/supersim/v1/network_access_profile/network_access_profile_network.py
@@ -279,11 +279,10 @@ def create(self, network: str) -> NetworkAccessProfileNetworkInstance:
                 "Network": network,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return NetworkAccessProfileNetworkInstance(
@@ -306,11 +305,10 @@ async def create_async(self, network: str) -> NetworkAccessProfileNetworkInstanc
                 "Network": network,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return NetworkAccessProfileNetworkInstance(
diff --git a/twilio/rest/supersim/v1/sim/__init__.py b/twilio/rest/supersim/v1/sim/__init__.py
index b1ba64733..1452f1eac 100644
--- a/twilio/rest/supersim/v1/sim/__init__.py
+++ b/twilio/rest/supersim/v1/sim/__init__.py
@@ -413,11 +413,10 @@ def create(self, iccid: str, registration_code: str) -> SimInstance:
                 "RegistrationCode": registration_code,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SimInstance(self._version, payload)
@@ -438,11 +437,10 @@ async def create_async(self, iccid: str, registration_code: str) -> SimInstance:
                 "RegistrationCode": registration_code,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SimInstance(self._version, payload)
diff --git a/twilio/rest/supersim/v1/sms_command.py b/twilio/rest/supersim/v1/sms_command.py
index 0eb209410..26d39a0bf 100644
--- a/twilio/rest/supersim/v1/sms_command.py
+++ b/twilio/rest/supersim/v1/sms_command.py
@@ -239,11 +239,10 @@ def create(
                 "CallbackUrl": callback_url,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SmsCommandInstance(self._version, payload)
@@ -274,11 +273,10 @@ async def create_async(
                 "CallbackUrl": callback_url,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SmsCommandInstance(self._version, payload)
diff --git a/twilio/rest/sync/v1/service/__init__.py b/twilio/rest/sync/v1/service/__init__.py
index 0bf1045f2..02d4e8f7e 100644
--- a/twilio/rest/sync/v1/service/__init__.py
+++ b/twilio/rest/sync/v1/service/__init__.py
@@ -549,11 +549,10 @@ def create(
                 ),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ServiceInstance(self._version, payload)
@@ -599,11 +598,10 @@ async def create_async(
                 ),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ServiceInstance(self._version, payload)
diff --git a/twilio/rest/sync/v1/service/document/__init__.py b/twilio/rest/sync/v1/service/document/__init__.py
index f3b89cfe6..033f27cf4 100644
--- a/twilio/rest/sync/v1/service/document/__init__.py
+++ b/twilio/rest/sync/v1/service/document/__init__.py
@@ -432,11 +432,10 @@ def create(
                 "Ttl": ttl,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return DocumentInstance(
@@ -466,11 +465,10 @@ async def create_async(
                 "Ttl": ttl,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return DocumentInstance(
diff --git a/twilio/rest/sync/v1/service/sync_list/__init__.py b/twilio/rest/sync/v1/service/sync_list/__init__.py
index 7e9ca672c..235fcbd1b 100644
--- a/twilio/rest/sync/v1/service/sync_list/__init__.py
+++ b/twilio/rest/sync/v1/service/sync_list/__init__.py
@@ -436,11 +436,10 @@ def create(
                 "CollectionTtl": collection_ttl,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SyncListInstance(
@@ -470,11 +469,10 @@ async def create_async(
                 "CollectionTtl": collection_ttl,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SyncListInstance(
diff --git a/twilio/rest/sync/v1/service/sync_list/sync_list_item.py b/twilio/rest/sync/v1/service/sync_list/sync_list_item.py
index 02dafcd49..0db046e1a 100644
--- a/twilio/rest/sync/v1/service/sync_list/sync_list_item.py
+++ b/twilio/rest/sync/v1/service/sync_list/sync_list_item.py
@@ -475,11 +475,10 @@ def create(
                 "CollectionTtl": collection_ttl,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SyncListItemInstance(
@@ -515,11 +514,10 @@ async def create_async(
                 "CollectionTtl": collection_ttl,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SyncListItemInstance(
diff --git a/twilio/rest/sync/v1/service/sync_map/__init__.py b/twilio/rest/sync/v1/service/sync_map/__init__.py
index 1a68e8ef4..1c6b5c9a0 100644
--- a/twilio/rest/sync/v1/service/sync_map/__init__.py
+++ b/twilio/rest/sync/v1/service/sync_map/__init__.py
@@ -436,11 +436,10 @@ def create(
                 "CollectionTtl": collection_ttl,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SyncMapInstance(
@@ -470,11 +469,10 @@ async def create_async(
                 "CollectionTtl": collection_ttl,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SyncMapInstance(
diff --git a/twilio/rest/sync/v1/service/sync_map/sync_map_item.py b/twilio/rest/sync/v1/service/sync_map/sync_map_item.py
index 7c621f8ad..c5381fc59 100644
--- a/twilio/rest/sync/v1/service/sync_map/sync_map_item.py
+++ b/twilio/rest/sync/v1/service/sync_map/sync_map_item.py
@@ -478,11 +478,10 @@ def create(
                 "CollectionTtl": collection_ttl,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SyncMapItemInstance(
@@ -521,11 +520,10 @@ async def create_async(
                 "CollectionTtl": collection_ttl,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SyncMapItemInstance(
diff --git a/twilio/rest/sync/v1/service/sync_stream/__init__.py b/twilio/rest/sync/v1/service/sync_stream/__init__.py
index aa10d164a..c9b98ab7d 100644
--- a/twilio/rest/sync/v1/service/sync_stream/__init__.py
+++ b/twilio/rest/sync/v1/service/sync_stream/__init__.py
@@ -387,11 +387,10 @@ def create(
                 "Ttl": ttl,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SyncStreamInstance(
@@ -418,11 +417,10 @@ async def create_async(
                 "Ttl": ttl,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SyncStreamInstance(
diff --git a/twilio/rest/sync/v1/service/sync_stream/stream_message.py b/twilio/rest/sync/v1/service/sync_stream/stream_message.py
index 88a7604a7..baca803f9 100644
--- a/twilio/rest/sync/v1/service/sync_stream/stream_message.py
+++ b/twilio/rest/sync/v1/service/sync_stream/stream_message.py
@@ -89,11 +89,10 @@ def create(self, data: object) -> StreamMessageInstance:
                 "Data": serialize.object(data),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return StreamMessageInstance(
@@ -117,11 +116,10 @@ async def create_async(self, data: object) -> StreamMessageInstance:
                 "Data": serialize.object(data),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return StreamMessageInstance(
diff --git a/twilio/rest/taskrouter/v1/workspace/__init__.py b/twilio/rest/taskrouter/v1/workspace/__init__.py
index f1202197c..60085c118 100644
--- a/twilio/rest/taskrouter/v1/workspace/__init__.py
+++ b/twilio/rest/taskrouter/v1/workspace/__init__.py
@@ -671,11 +671,10 @@ def create(
                 "PrioritizeQueueOrder": prioritize_queue_order,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return WorkspaceInstance(self._version, payload)
@@ -714,11 +713,10 @@ async def create_async(
                 "PrioritizeQueueOrder": prioritize_queue_order,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return WorkspaceInstance(self._version, payload)
diff --git a/twilio/rest/taskrouter/v1/workspace/activity.py b/twilio/rest/taskrouter/v1/workspace/activity.py
index bae49d5ef..e211ef9f7 100644
--- a/twilio/rest/taskrouter/v1/workspace/activity.py
+++ b/twilio/rest/taskrouter/v1/workspace/activity.py
@@ -364,11 +364,10 @@ def create(
                 "Available": serialize.boolean_to_string(available),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ActivityInstance(
@@ -393,11 +392,10 @@ async def create_async(
                 "Available": serialize.boolean_to_string(available),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ActivityInstance(
diff --git a/twilio/rest/taskrouter/v1/workspace/task/__init__.py b/twilio/rest/taskrouter/v1/workspace/task/__init__.py
index 9d35415ae..f71c4bd68 100644
--- a/twilio/rest/taskrouter/v1/workspace/task/__init__.py
+++ b/twilio/rest/taskrouter/v1/workspace/task/__init__.py
@@ -555,11 +555,10 @@ def create(
                 "TaskQueueSid": task_queue_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return TaskInstance(
@@ -607,11 +606,10 @@ async def create_async(
                 "TaskQueueSid": task_queue_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return TaskInstance(
diff --git a/twilio/rest/taskrouter/v1/workspace/task_channel.py b/twilio/rest/taskrouter/v1/workspace/task_channel.py
index 099f85efb..95a7e5efa 100644
--- a/twilio/rest/taskrouter/v1/workspace/task_channel.py
+++ b/twilio/rest/taskrouter/v1/workspace/task_channel.py
@@ -395,11 +395,10 @@ def create(
                 ),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return TaskChannelInstance(
@@ -431,11 +430,10 @@ async def create_async(
                 ),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return TaskChannelInstance(
diff --git a/twilio/rest/taskrouter/v1/workspace/task_queue/__init__.py b/twilio/rest/taskrouter/v1/workspace/task_queue/__init__.py
index 794fd216d..027cf8dbf 100644
--- a/twilio/rest/taskrouter/v1/workspace/task_queue/__init__.py
+++ b/twilio/rest/taskrouter/v1/workspace/task_queue/__init__.py
@@ -555,11 +555,10 @@ def create(
                 "AssignmentActivitySid": assignment_activity_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return TaskQueueInstance(
@@ -598,11 +597,10 @@ async def create_async(
                 "AssignmentActivitySid": assignment_activity_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return TaskQueueInstance(
diff --git a/twilio/rest/taskrouter/v1/workspace/task_queue/task_queue_bulk_real_time_statistics.py b/twilio/rest/taskrouter/v1/workspace/task_queue/task_queue_bulk_real_time_statistics.py
index a1c44b164..9ccef4577 100644
--- a/twilio/rest/taskrouter/v1/workspace/task_queue/task_queue_bulk_real_time_statistics.py
+++ b/twilio/rest/taskrouter/v1/workspace/task_queue/task_queue_bulk_real_time_statistics.py
@@ -92,7 +92,8 @@ def create(
         """
         data = body.to_dict()
 
-        headers = {"Content-Type": "application/json"}
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
+        headers["Content-Type"] = "application/json"
 
         payload = self._version.create(
             method="POST", uri=self._uri, data=data, headers=headers
@@ -114,7 +115,8 @@ async def create_async(
         """
         data = body.to_dict()
 
-        headers = {"Content-Type": "application/json"}
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
+        headers["Content-Type"] = "application/json"
 
         payload = await self._version.create_async(
             method="POST", uri=self._uri, data=data, headers=headers
diff --git a/twilio/rest/taskrouter/v1/workspace/worker/__init__.py b/twilio/rest/taskrouter/v1/workspace/worker/__init__.py
index a236fcae8..8f6ff4c7e 100644
--- a/twilio/rest/taskrouter/v1/workspace/worker/__init__.py
+++ b/twilio/rest/taskrouter/v1/workspace/worker/__init__.py
@@ -535,11 +535,10 @@ def create(
                 "Attributes": attributes,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return WorkerInstance(
@@ -569,11 +568,10 @@ async def create_async(
                 "Attributes": attributes,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return WorkerInstance(
diff --git a/twilio/rest/taskrouter/v1/workspace/workflow/__init__.py b/twilio/rest/taskrouter/v1/workspace/workflow/__init__.py
index f01e76d37..96d7aabf0 100644
--- a/twilio/rest/taskrouter/v1/workspace/workflow/__init__.py
+++ b/twilio/rest/taskrouter/v1/workspace/workflow/__init__.py
@@ -526,11 +526,10 @@ def create(
                 "TaskReservationTimeout": task_reservation_timeout,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return WorkflowInstance(
@@ -566,11 +565,10 @@ async def create_async(
                 "TaskReservationTimeout": task_reservation_timeout,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return WorkflowInstance(
diff --git a/twilio/rest/trunking/v1/trunk/__init__.py b/twilio/rest/trunking/v1/trunk/__init__.py
index 16125ead0..b1bfdba11 100644
--- a/twilio/rest/trunking/v1/trunk/__init__.py
+++ b/twilio/rest/trunking/v1/trunk/__init__.py
@@ -591,11 +591,10 @@ def create(
                 "TransferCallerId": transfer_caller_id,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return TrunkInstance(self._version, payload)
@@ -640,11 +639,10 @@ async def create_async(
                 "TransferCallerId": transfer_caller_id,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return TrunkInstance(self._version, payload)
diff --git a/twilio/rest/trunking/v1/trunk/credential_list.py b/twilio/rest/trunking/v1/trunk/credential_list.py
index 7dc043d28..e04bb3072 100644
--- a/twilio/rest/trunking/v1/trunk/credential_list.py
+++ b/twilio/rest/trunking/v1/trunk/credential_list.py
@@ -268,11 +268,10 @@ def create(self, credential_list_sid: str) -> CredentialListInstance:
                 "CredentialListSid": credential_list_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CredentialListInstance(
@@ -293,11 +292,10 @@ async def create_async(self, credential_list_sid: str) -> CredentialListInstance
                 "CredentialListSid": credential_list_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CredentialListInstance(
diff --git a/twilio/rest/trunking/v1/trunk/ip_access_control_list.py b/twilio/rest/trunking/v1/trunk/ip_access_control_list.py
index b361e7fe9..957084cb6 100644
--- a/twilio/rest/trunking/v1/trunk/ip_access_control_list.py
+++ b/twilio/rest/trunking/v1/trunk/ip_access_control_list.py
@@ -270,11 +270,10 @@ def create(self, ip_access_control_list_sid: str) -> IpAccessControlListInstance
                 "IpAccessControlListSid": ip_access_control_list_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return IpAccessControlListInstance(
@@ -297,11 +296,10 @@ async def create_async(
                 "IpAccessControlListSid": ip_access_control_list_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return IpAccessControlListInstance(
diff --git a/twilio/rest/trunking/v1/trunk/origination_url.py b/twilio/rest/trunking/v1/trunk/origination_url.py
index bcf0c5205..e8e77180e 100644
--- a/twilio/rest/trunking/v1/trunk/origination_url.py
+++ b/twilio/rest/trunking/v1/trunk/origination_url.py
@@ -429,11 +429,10 @@ def create(
                 "SipUrl": sip_url,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return OriginationUrlInstance(
@@ -469,11 +468,10 @@ async def create_async(
                 "SipUrl": sip_url,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return OriginationUrlInstance(
diff --git a/twilio/rest/trunking/v1/trunk/phone_number.py b/twilio/rest/trunking/v1/trunk/phone_number.py
index 7f0adbeef..75cb5f6c6 100644
--- a/twilio/rest/trunking/v1/trunk/phone_number.py
+++ b/twilio/rest/trunking/v1/trunk/phone_number.py
@@ -319,11 +319,10 @@ def create(self, phone_number_sid: str) -> PhoneNumberInstance:
                 "PhoneNumberSid": phone_number_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return PhoneNumberInstance(
@@ -344,11 +343,10 @@ async def create_async(self, phone_number_sid: str) -> PhoneNumberInstance:
                 "PhoneNumberSid": phone_number_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return PhoneNumberInstance(
diff --git a/twilio/rest/trusthub/v1/compliance_inquiries.py b/twilio/rest/trusthub/v1/compliance_inquiries.py
index b1b52a4f7..6fe6c297b 100644
--- a/twilio/rest/trusthub/v1/compliance_inquiries.py
+++ b/twilio/rest/trusthub/v1/compliance_inquiries.py
@@ -209,11 +209,10 @@ def create(
                 "NotificationEmail": notification_email,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ComplianceInquiriesInstance(self._version, payload)
@@ -238,11 +237,10 @@ async def create_async(
                 "NotificationEmail": notification_email,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ComplianceInquiriesInstance(self._version, payload)
diff --git a/twilio/rest/trusthub/v1/compliance_registration_inquiries.py b/twilio/rest/trusthub/v1/compliance_registration_inquiries.py
index c279bce12..2f6c46534 100644
--- a/twilio/rest/trusthub/v1/compliance_registration_inquiries.py
+++ b/twilio/rest/trusthub/v1/compliance_registration_inquiries.py
@@ -378,11 +378,10 @@ def create(
                 "ThemeSetId": theme_set_id,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ComplianceRegistrationInquiriesInstance(self._version, payload)
@@ -527,11 +526,10 @@ async def create_async(
                 "ThemeSetId": theme_set_id,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ComplianceRegistrationInquiriesInstance(self._version, payload)
diff --git a/twilio/rest/trusthub/v1/compliance_tollfree_inquiries.py b/twilio/rest/trusthub/v1/compliance_tollfree_inquiries.py
index 490f68b4e..4d8988ab4 100644
--- a/twilio/rest/trusthub/v1/compliance_tollfree_inquiries.py
+++ b/twilio/rest/trusthub/v1/compliance_tollfree_inquiries.py
@@ -93,6 +93,7 @@ def create(
         business_contact_email: Union[str, object] = values.unset,
         business_contact_phone: Union[str, object] = values.unset,
         theme_set_id: Union[str, object] = values.unset,
+        skip_messaging_use_case: Union[bool, object] = values.unset,
     ) -> ComplianceTollfreeInquiriesInstance:
         """
         Create the ComplianceTollfreeInquiriesInstance
@@ -119,6 +120,7 @@ def create(
         :param business_contact_email: The email address of the contact for the business or organization using the Tollfree number.
         :param business_contact_phone: The phone number of the contact for the business or organization using the Tollfree number.
         :param theme_set_id: Theme id for styling the inquiry form.
+        :param skip_messaging_use_case: Skip the messaging use case screen of the inquiry form.
 
         :returns: The created ComplianceTollfreeInquiriesInstance
         """
@@ -147,13 +149,15 @@ def create(
                 "BusinessContactEmail": business_contact_email,
                 "BusinessContactPhone": business_contact_phone,
                 "ThemeSetId": theme_set_id,
+                "SkipMessagingUseCase": serialize.boolean_to_string(
+                    skip_messaging_use_case
+                ),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ComplianceTollfreeInquiriesInstance(self._version, payload)
@@ -184,6 +188,7 @@ async def create_async(
         business_contact_email: Union[str, object] = values.unset,
         business_contact_phone: Union[str, object] = values.unset,
         theme_set_id: Union[str, object] = values.unset,
+        skip_messaging_use_case: Union[bool, object] = values.unset,
     ) -> ComplianceTollfreeInquiriesInstance:
         """
         Asynchronously create the ComplianceTollfreeInquiriesInstance
@@ -210,6 +215,7 @@ async def create_async(
         :param business_contact_email: The email address of the contact for the business or organization using the Tollfree number.
         :param business_contact_phone: The phone number of the contact for the business or organization using the Tollfree number.
         :param theme_set_id: Theme id for styling the inquiry form.
+        :param skip_messaging_use_case: Skip the messaging use case screen of the inquiry form.
 
         :returns: The created ComplianceTollfreeInquiriesInstance
         """
@@ -238,13 +244,15 @@ async def create_async(
                 "BusinessContactEmail": business_contact_email,
                 "BusinessContactPhone": business_contact_phone,
                 "ThemeSetId": theme_set_id,
+                "SkipMessagingUseCase": serialize.boolean_to_string(
+                    skip_messaging_use_case
+                ),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ComplianceTollfreeInquiriesInstance(self._version, payload)
diff --git a/twilio/rest/trusthub/v1/customer_profiles/__init__.py b/twilio/rest/trusthub/v1/customer_profiles/__init__.py
index 536509277..5079b89e6 100644
--- a/twilio/rest/trusthub/v1/customer_profiles/__init__.py
+++ b/twilio/rest/trusthub/v1/customer_profiles/__init__.py
@@ -493,11 +493,10 @@ def create(
                 "StatusCallback": status_callback,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CustomerProfilesInstance(self._version, payload)
@@ -528,11 +527,10 @@ async def create_async(
                 "StatusCallback": status_callback,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CustomerProfilesInstance(self._version, payload)
diff --git a/twilio/rest/trusthub/v1/customer_profiles/customer_profiles_channel_endpoint_assignment.py b/twilio/rest/trusthub/v1/customer_profiles/customer_profiles_channel_endpoint_assignment.py
index 4cb14c5cc..0369e51d5 100644
--- a/twilio/rest/trusthub/v1/customer_profiles/customer_profiles_channel_endpoint_assignment.py
+++ b/twilio/rest/trusthub/v1/customer_profiles/customer_profiles_channel_endpoint_assignment.py
@@ -282,11 +282,10 @@ def create(
                 "ChannelEndpointSid": channel_endpoint_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CustomerProfilesChannelEndpointAssignmentInstance(
@@ -313,11 +312,10 @@ async def create_async(
                 "ChannelEndpointSid": channel_endpoint_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CustomerProfilesChannelEndpointAssignmentInstance(
diff --git a/twilio/rest/trusthub/v1/customer_profiles/customer_profiles_entity_assignments.py b/twilio/rest/trusthub/v1/customer_profiles/customer_profiles_entity_assignments.py
index 5a19ccaab..8fbb523b8 100644
--- a/twilio/rest/trusthub/v1/customer_profiles/customer_profiles_entity_assignments.py
+++ b/twilio/rest/trusthub/v1/customer_profiles/customer_profiles_entity_assignments.py
@@ -282,11 +282,10 @@ def create(self, object_sid: str) -> CustomerProfilesEntityAssignmentsInstance:
                 "ObjectSid": object_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CustomerProfilesEntityAssignmentsInstance(
@@ -311,11 +310,10 @@ async def create_async(
                 "ObjectSid": object_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CustomerProfilesEntityAssignmentsInstance(
diff --git a/twilio/rest/trusthub/v1/customer_profiles/customer_profiles_evaluations.py b/twilio/rest/trusthub/v1/customer_profiles/customer_profiles_evaluations.py
index 60538ee22..b5c3ba746 100644
--- a/twilio/rest/trusthub/v1/customer_profiles/customer_profiles_evaluations.py
+++ b/twilio/rest/trusthub/v1/customer_profiles/customer_profiles_evaluations.py
@@ -245,11 +245,10 @@ def create(self, policy_sid: str) -> CustomerProfilesEvaluationsInstance:
                 "PolicySid": policy_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CustomerProfilesEvaluationsInstance(
@@ -274,11 +273,10 @@ async def create_async(
                 "PolicySid": policy_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CustomerProfilesEvaluationsInstance(
diff --git a/twilio/rest/trusthub/v1/end_user.py b/twilio/rest/trusthub/v1/end_user.py
index b8b08d65c..42bdb155e 100644
--- a/twilio/rest/trusthub/v1/end_user.py
+++ b/twilio/rest/trusthub/v1/end_user.py
@@ -354,11 +354,10 @@ def create(
                 "Attributes": serialize.object(attributes),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return EndUserInstance(self._version, payload)
@@ -386,11 +385,10 @@ async def create_async(
                 "Attributes": serialize.object(attributes),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return EndUserInstance(self._version, payload)
diff --git a/twilio/rest/trusthub/v1/supporting_document.py b/twilio/rest/trusthub/v1/supporting_document.py
index a18293fd8..2336e1fef 100644
--- a/twilio/rest/trusthub/v1/supporting_document.py
+++ b/twilio/rest/trusthub/v1/supporting_document.py
@@ -373,11 +373,10 @@ def create(
                 "Attributes": serialize.object(attributes),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SupportingDocumentInstance(self._version, payload)
@@ -405,11 +404,10 @@ async def create_async(
                 "Attributes": serialize.object(attributes),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SupportingDocumentInstance(self._version, payload)
diff --git a/twilio/rest/trusthub/v1/trust_products/__init__.py b/twilio/rest/trusthub/v1/trust_products/__init__.py
index 35f233cc7..c819eb0a0 100644
--- a/twilio/rest/trusthub/v1/trust_products/__init__.py
+++ b/twilio/rest/trusthub/v1/trust_products/__init__.py
@@ -483,11 +483,10 @@ def create(
                 "StatusCallback": status_callback,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return TrustProductsInstance(self._version, payload)
@@ -518,11 +517,10 @@ async def create_async(
                 "StatusCallback": status_callback,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return TrustProductsInstance(self._version, payload)
diff --git a/twilio/rest/trusthub/v1/trust_products/trust_products_channel_endpoint_assignment.py b/twilio/rest/trusthub/v1/trust_products/trust_products_channel_endpoint_assignment.py
index ef2b589ff..df69d31dd 100644
--- a/twilio/rest/trusthub/v1/trust_products/trust_products_channel_endpoint_assignment.py
+++ b/twilio/rest/trusthub/v1/trust_products/trust_products_channel_endpoint_assignment.py
@@ -284,11 +284,10 @@ def create(
                 "ChannelEndpointSid": channel_endpoint_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return TrustProductsChannelEndpointAssignmentInstance(
@@ -315,11 +314,10 @@ async def create_async(
                 "ChannelEndpointSid": channel_endpoint_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return TrustProductsChannelEndpointAssignmentInstance(
diff --git a/twilio/rest/trusthub/v1/trust_products/trust_products_entity_assignments.py b/twilio/rest/trusthub/v1/trust_products/trust_products_entity_assignments.py
index 16f07a892..57e1b3119 100644
--- a/twilio/rest/trusthub/v1/trust_products/trust_products_entity_assignments.py
+++ b/twilio/rest/trusthub/v1/trust_products/trust_products_entity_assignments.py
@@ -276,11 +276,10 @@ def create(self, object_sid: str) -> TrustProductsEntityAssignmentsInstance:
                 "ObjectSid": object_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return TrustProductsEntityAssignmentsInstance(
@@ -305,11 +304,10 @@ async def create_async(
                 "ObjectSid": object_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return TrustProductsEntityAssignmentsInstance(
diff --git a/twilio/rest/trusthub/v1/trust_products/trust_products_evaluations.py b/twilio/rest/trusthub/v1/trust_products/trust_products_evaluations.py
index dfb929bac..3088a2b1b 100644
--- a/twilio/rest/trusthub/v1/trust_products/trust_products_evaluations.py
+++ b/twilio/rest/trusthub/v1/trust_products/trust_products_evaluations.py
@@ -241,11 +241,10 @@ def create(self, policy_sid: str) -> TrustProductsEvaluationsInstance:
                 "PolicySid": policy_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return TrustProductsEvaluationsInstance(
@@ -268,11 +267,10 @@ async def create_async(self, policy_sid: str) -> TrustProductsEvaluationsInstanc
                 "PolicySid": policy_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return TrustProductsEvaluationsInstance(
diff --git a/twilio/rest/verify/v2/safelist.py b/twilio/rest/verify/v2/safelist.py
index fb71369fb..0ee946a34 100644
--- a/twilio/rest/verify/v2/safelist.py
+++ b/twilio/rest/verify/v2/safelist.py
@@ -221,11 +221,10 @@ def create(self, phone_number: str) -> SafelistInstance:
                 "PhoneNumber": phone_number,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SafelistInstance(self._version, payload)
@@ -244,11 +243,10 @@ async def create_async(self, phone_number: str) -> SafelistInstance:
                 "PhoneNumber": phone_number,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SafelistInstance(self._version, payload)
diff --git a/twilio/rest/verify/v2/service/__init__.py b/twilio/rest/verify/v2/service/__init__.py
index 36d7c1058..69a6cf853 100644
--- a/twilio/rest/verify/v2/service/__init__.py
+++ b/twilio/rest/verify/v2/service/__init__.py
@@ -821,11 +821,10 @@ def create(
                 ),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ServiceInstance(self._version, payload)
@@ -910,11 +909,10 @@ async def create_async(
                 ),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ServiceInstance(self._version, payload)
diff --git a/twilio/rest/verify/v2/service/access_token.py b/twilio/rest/verify/v2/service/access_token.py
index 0bb888a08..917abbc96 100644
--- a/twilio/rest/verify/v2/service/access_token.py
+++ b/twilio/rest/verify/v2/service/access_token.py
@@ -228,11 +228,10 @@ def create(
                 "Ttl": ttl,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return AccessTokenInstance(
@@ -265,11 +264,10 @@ async def create_async(
                 "Ttl": ttl,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return AccessTokenInstance(
diff --git a/twilio/rest/verify/v2/service/entity/__init__.py b/twilio/rest/verify/v2/service/entity/__init__.py
index 41541a4ca..7371edc08 100644
--- a/twilio/rest/verify/v2/service/entity/__init__.py
+++ b/twilio/rest/verify/v2/service/entity/__init__.py
@@ -339,11 +339,10 @@ def create(self, identity: str) -> EntityInstance:
                 "Identity": identity,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return EntityInstance(
@@ -364,11 +363,10 @@ async def create_async(self, identity: str) -> EntityInstance:
                 "Identity": identity,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return EntityInstance(
diff --git a/twilio/rest/verify/v2/service/entity/challenge/__init__.py b/twilio/rest/verify/v2/service/entity/challenge/__init__.py
index ab8c7f8d1..9ca2e4089 100644
--- a/twilio/rest/verify/v2/service/entity/challenge/__init__.py
+++ b/twilio/rest/verify/v2/service/entity/challenge/__init__.py
@@ -444,11 +444,10 @@ def create(
                 "AuthPayload": auth_payload,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ChallengeInstance(
@@ -492,11 +491,10 @@ async def create_async(
                 "AuthPayload": auth_payload,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ChallengeInstance(
diff --git a/twilio/rest/verify/v2/service/entity/challenge/notification.py b/twilio/rest/verify/v2/service/entity/challenge/notification.py
index 0cfae0a60..eadf42b81 100644
--- a/twilio/rest/verify/v2/service/entity/challenge/notification.py
+++ b/twilio/rest/verify/v2/service/entity/challenge/notification.py
@@ -112,11 +112,10 @@ def create(self, ttl: Union[int, object] = values.unset) -> NotificationInstance
                 "Ttl": ttl,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return NotificationInstance(
@@ -143,11 +142,10 @@ async def create_async(
                 "Ttl": ttl,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return NotificationInstance(
diff --git a/twilio/rest/verify/v2/service/entity/new_factor.py b/twilio/rest/verify/v2/service/entity/new_factor.py
index 7b260a4a3..c88a94585 100644
--- a/twilio/rest/verify/v2/service/entity/new_factor.py
+++ b/twilio/rest/verify/v2/service/entity/new_factor.py
@@ -181,11 +181,10 @@ def create(
                 "Metadata": serialize.object(metadata),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return NewFactorInstance(
@@ -253,11 +252,10 @@ async def create_async(
                 "Metadata": serialize.object(metadata),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return NewFactorInstance(
diff --git a/twilio/rest/verify/v2/service/messaging_configuration.py b/twilio/rest/verify/v2/service/messaging_configuration.py
index f412aba1e..b84177033 100644
--- a/twilio/rest/verify/v2/service/messaging_configuration.py
+++ b/twilio/rest/verify/v2/service/messaging_configuration.py
@@ -358,11 +358,10 @@ def create(
                 "MessagingServiceSid": messaging_service_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return MessagingConfigurationInstance(
@@ -387,11 +386,10 @@ async def create_async(
                 "MessagingServiceSid": messaging_service_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return MessagingConfigurationInstance(
diff --git a/twilio/rest/verify/v2/service/rate_limit/__init__.py b/twilio/rest/verify/v2/service/rate_limit/__init__.py
index 2d4a18bf0..bdd165858 100644
--- a/twilio/rest/verify/v2/service/rate_limit/__init__.py
+++ b/twilio/rest/verify/v2/service/rate_limit/__init__.py
@@ -385,11 +385,10 @@ def create(
                 "Description": description,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return RateLimitInstance(
@@ -414,11 +413,10 @@ async def create_async(
                 "Description": description,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return RateLimitInstance(
diff --git a/twilio/rest/verify/v2/service/rate_limit/bucket.py b/twilio/rest/verify/v2/service/rate_limit/bucket.py
index ca4ffaf77..dee84901e 100644
--- a/twilio/rest/verify/v2/service/rate_limit/bucket.py
+++ b/twilio/rest/verify/v2/service/rate_limit/bucket.py
@@ -400,11 +400,10 @@ def create(self, max: int, interval: int) -> BucketInstance:
                 "Interval": interval,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return BucketInstance(
@@ -430,11 +429,10 @@ async def create_async(self, max: int, interval: int) -> BucketInstance:
                 "Interval": interval,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return BucketInstance(
diff --git a/twilio/rest/verify/v2/service/verification.py b/twilio/rest/verify/v2/service/verification.py
index 3ab719551..c8deef535 100644
--- a/twilio/rest/verify/v2/service/verification.py
+++ b/twilio/rest/verify/v2/service/verification.py
@@ -373,11 +373,10 @@ def create(
                 "Tags": tags,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return VerificationInstance(
@@ -449,11 +448,10 @@ async def create_async(
                 "Tags": tags,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return VerificationInstance(
diff --git a/twilio/rest/verify/v2/service/verification_check.py b/twilio/rest/verify/v2/service/verification_check.py
index 9744b1bba..af216a39f 100644
--- a/twilio/rest/verify/v2/service/verification_check.py
+++ b/twilio/rest/verify/v2/service/verification_check.py
@@ -130,11 +130,10 @@ def create(
                 "Payee": payee,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return VerificationCheckInstance(
@@ -170,11 +169,10 @@ async def create_async(
                 "Payee": payee,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return VerificationCheckInstance(
diff --git a/twilio/rest/verify/v2/service/webhook.py b/twilio/rest/verify/v2/service/webhook.py
index 4f8772574..67ffced26 100644
--- a/twilio/rest/verify/v2/service/webhook.py
+++ b/twilio/rest/verify/v2/service/webhook.py
@@ -446,11 +446,10 @@ def create(
                 "Version": version,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return WebhookInstance(
@@ -486,11 +485,10 @@ async def create_async(
                 "Version": version,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return WebhookInstance(
diff --git a/twilio/rest/video/v1/composition.py b/twilio/rest/video/v1/composition.py
index 30aa33fff..8add1e74e 100644
--- a/twilio/rest/video/v1/composition.py
+++ b/twilio/rest/video/v1/composition.py
@@ -328,11 +328,10 @@ def create(
                 "Trim": serialize.boolean_to_string(trim),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CompositionInstance(self._version, payload)
@@ -380,11 +379,10 @@ async def create_async(
                 "Trim": serialize.boolean_to_string(trim),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CompositionInstance(self._version, payload)
diff --git a/twilio/rest/video/v1/composition_hook.py b/twilio/rest/video/v1/composition_hook.py
index 027a27f74..0f833f793 100644
--- a/twilio/rest/video/v1/composition_hook.py
+++ b/twilio/rest/video/v1/composition_hook.py
@@ -504,11 +504,10 @@ def create(
                 "Trim": serialize.boolean_to_string(trim),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CompositionHookInstance(self._version, payload)
@@ -559,11 +558,10 @@ async def create_async(
                 "Trim": serialize.boolean_to_string(trim),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CompositionHookInstance(self._version, payload)
diff --git a/twilio/rest/video/v1/room/__init__.py b/twilio/rest/video/v1/room/__init__.py
index a8ffdb895..c735e5516 100644
--- a/twilio/rest/video/v1/room/__init__.py
+++ b/twilio/rest/video/v1/room/__init__.py
@@ -456,11 +456,10 @@ def create(
                 "LargeRoom": serialize.boolean_to_string(large_room),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return RoomInstance(self._version, payload)
@@ -526,11 +525,10 @@ async def create_async(
                 "LargeRoom": serialize.boolean_to_string(large_room),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return RoomInstance(self._version, payload)
diff --git a/twilio/rest/video/v1/room/participant/subscribe_rules.py b/twilio/rest/video/v1/room/participant/subscribe_rules.py
index e07d3b5ff..a15503849 100644
--- a/twilio/rest/video/v1/room/participant/subscribe_rules.py
+++ b/twilio/rest/video/v1/room/participant/subscribe_rules.py
@@ -95,8 +95,9 @@ def fetch(self) -> SubscribeRulesInstance:
 
         :returns: The fetched SubscribeRulesInstance
         """
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
-        payload = self._version.fetch(method="GET", uri=self._uri)
+        payload = self._version.fetch(method="GET", uri=self._uri, headers=headers)
 
         return SubscribeRulesInstance(
             self._version,
@@ -112,8 +113,11 @@ async def fetch_async(self) -> SubscribeRulesInstance:
 
         :returns: The fetched SubscribeRulesInstance
         """
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
-        payload = await self._version.fetch_async(method="GET", uri=self._uri)
+        payload = await self._version.fetch_async(
+            method="GET", uri=self._uri, headers=headers
+        )
 
         return SubscribeRulesInstance(
             self._version,
@@ -138,11 +142,10 @@ def update(
                 "Rules": serialize.object(rules),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.update(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SubscribeRulesInstance(
@@ -168,11 +171,10 @@ async def update_async(
                 "Rules": serialize.object(rules),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.update_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SubscribeRulesInstance(
diff --git a/twilio/rest/video/v1/room/recording_rules.py b/twilio/rest/video/v1/room/recording_rules.py
index c94bbf149..f85ebe896 100644
--- a/twilio/rest/video/v1/room/recording_rules.py
+++ b/twilio/rest/video/v1/room/recording_rules.py
@@ -80,8 +80,9 @@ def fetch(self) -> RecordingRulesInstance:
 
         :returns: The fetched RecordingRulesInstance
         """
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
-        payload = self._version.fetch(method="GET", uri=self._uri)
+        payload = self._version.fetch(method="GET", uri=self._uri, headers=headers)
 
         return RecordingRulesInstance(
             self._version, payload, room_sid=self._solution["room_sid"]
@@ -94,8 +95,11 @@ async def fetch_async(self) -> RecordingRulesInstance:
 
         :returns: The fetched RecordingRulesInstance
         """
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
-        payload = await self._version.fetch_async(method="GET", uri=self._uri)
+        payload = await self._version.fetch_async(
+            method="GET", uri=self._uri, headers=headers
+        )
 
         return RecordingRulesInstance(
             self._version, payload, room_sid=self._solution["room_sid"]
@@ -117,11 +121,10 @@ def update(
                 "Rules": serialize.object(rules),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.update(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return RecordingRulesInstance(
@@ -144,11 +147,10 @@ async def update_async(
                 "Rules": serialize.object(rules),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.update_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return RecordingRulesInstance(
diff --git a/twilio/rest/voice/v1/byoc_trunk.py b/twilio/rest/voice/v1/byoc_trunk.py
index a85cae660..1c3e301d7 100644
--- a/twilio/rest/voice/v1/byoc_trunk.py
+++ b/twilio/rest/voice/v1/byoc_trunk.py
@@ -487,11 +487,10 @@ def create(
                 "FromDomainSid": from_domain_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ByocTrunkInstance(self._version, payload)
@@ -540,11 +539,10 @@ async def create_async(
                 "FromDomainSid": from_domain_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ByocTrunkInstance(self._version, payload)
diff --git a/twilio/rest/voice/v1/connection_policy/__init__.py b/twilio/rest/voice/v1/connection_policy/__init__.py
index d1d8aac89..4e65be651 100644
--- a/twilio/rest/voice/v1/connection_policy/__init__.py
+++ b/twilio/rest/voice/v1/connection_policy/__init__.py
@@ -357,11 +357,10 @@ def create(
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ConnectionPolicyInstance(self._version, payload)
@@ -382,11 +381,10 @@ async def create_async(
                 "FriendlyName": friendly_name,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ConnectionPolicyInstance(self._version, payload)
diff --git a/twilio/rest/voice/v1/connection_policy/connection_policy_target.py b/twilio/rest/voice/v1/connection_policy/connection_policy_target.py
index 2fa490880..05daee6c7 100644
--- a/twilio/rest/voice/v1/connection_policy/connection_policy_target.py
+++ b/twilio/rest/voice/v1/connection_policy/connection_policy_target.py
@@ -435,11 +435,10 @@ def create(
                 "Enabled": serialize.boolean_to_string(enabled),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ConnectionPolicyTargetInstance(
@@ -477,11 +476,10 @@ async def create_async(
                 "Enabled": serialize.boolean_to_string(enabled),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return ConnectionPolicyTargetInstance(
diff --git a/twilio/rest/voice/v1/dialing_permissions/bulk_country_update.py b/twilio/rest/voice/v1/dialing_permissions/bulk_country_update.py
index 60aa2642f..5b0d35d3d 100644
--- a/twilio/rest/voice/v1/dialing_permissions/bulk_country_update.py
+++ b/twilio/rest/voice/v1/dialing_permissions/bulk_country_update.py
@@ -71,11 +71,10 @@ def create(self, update_request: str) -> BulkCountryUpdateInstance:
                 "UpdateRequest": update_request,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return BulkCountryUpdateInstance(self._version, payload)
@@ -94,11 +93,10 @@ async def create_async(self, update_request: str) -> BulkCountryUpdateInstance:
                 "UpdateRequest": update_request,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return BulkCountryUpdateInstance(self._version, payload)
diff --git a/twilio/rest/voice/v1/ip_record.py b/twilio/rest/voice/v1/ip_record.py
index ee409ba78..5c103bf98 100644
--- a/twilio/rest/voice/v1/ip_record.py
+++ b/twilio/rest/voice/v1/ip_record.py
@@ -340,11 +340,10 @@ def create(
                 "CidrPrefixLength": cidr_prefix_length,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return IpRecordInstance(self._version, payload)
@@ -372,11 +371,10 @@ async def create_async(
                 "CidrPrefixLength": cidr_prefix_length,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return IpRecordInstance(self._version, payload)
diff --git a/twilio/rest/voice/v1/source_ip_mapping.py b/twilio/rest/voice/v1/source_ip_mapping.py
index 8a0d4a912..50e2bbe36 100644
--- a/twilio/rest/voice/v1/source_ip_mapping.py
+++ b/twilio/rest/voice/v1/source_ip_mapping.py
@@ -325,11 +325,10 @@ def create(
                 "SipDomainSid": sip_domain_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SourceIpMappingInstance(self._version, payload)
@@ -352,11 +351,10 @@ async def create_async(
                 "SipDomainSid": sip_domain_sid,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return SourceIpMappingInstance(self._version, payload)
diff --git a/twilio/rest/wireless/v1/command.py b/twilio/rest/wireless/v1/command.py
index f310db891..3dc78e9b8 100644
--- a/twilio/rest/wireless/v1/command.py
+++ b/twilio/rest/wireless/v1/command.py
@@ -308,11 +308,10 @@ def create(
                 ),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CommandInstance(self._version, payload)
@@ -354,11 +353,10 @@ async def create_async(
                 ),
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return CommandInstance(self._version, payload)
diff --git a/twilio/rest/wireless/v1/rate_plan.py b/twilio/rest/wireless/v1/rate_plan.py
index 0ee1e205a..5370ef2ae 100644
--- a/twilio/rest/wireless/v1/rate_plan.py
+++ b/twilio/rest/wireless/v1/rate_plan.py
@@ -406,11 +406,10 @@ def create(
                 "InternationalRoamingDataLimit": international_roaming_data_limit,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = self._version.create(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return RatePlanInstance(self._version, payload)
@@ -466,11 +465,10 @@ async def create_async(
                 "InternationalRoamingDataLimit": international_roaming_data_limit,
             }
         )
+        headers = values.of({"Content-Type": "application/x-www-form-urlencoded"})
 
         payload = await self._version.create_async(
-            method="POST",
-            uri=self._uri,
-            data=data,
+            method="POST", uri=self._uri, data=data, headers=headers
         )
 
         return RatePlanInstance(self._version, payload)
diff --git a/twilio/twiml/voice_response.py b/twilio/twiml/voice_response.py
index 6beb109dc..c6d453e14 100644
--- a/twilio/twiml/voice_response.py
+++ b/twilio/twiml/voice_response.py
@@ -663,13 +663,81 @@ def siprec(
             )
         )
 
+    def transcription(
+        self,
+        name=None,
+        track=None,
+        status_callback_url=None,
+        status_callback_method=None,
+        inbound_track_label=None,
+        outbound_track_label=None,
+        partial_results=None,
+        language_code=None,
+        transcription_engine=None,
+        profanity_filter=None,
+        speech_model=None,
+        hints=None,
+        enable_automatic_punctuation=None,
+        **kwargs
+    ):
+        """
+        Create a <Transcription> element
 
-class Siprec(TwiML):
-    """<Siprec> TwiML Noun"""
+        :param name: Friendly name given to the Transcription
+        :param track: Track to be analyze by the provider
+        :param status_callback_url: Status Callback URL
+        :param status_callback_method: Status Callback URL method
+        :param inbound_track_label: Friendly name given to the Inbound Track
+        :param outbound_track_label: Friendly name given to the Outbound Track Label
+        :param partial_results: Indicates if partial results are going to be send to the customer
+        :param language_code: Language Code used by the transcription engine
+        :param transcription_engine: Transcription Engine to be used
+        :param profanity_filter: Enable Profanity Filter
+        :param speech_model: Speech Model used by the transcription engine
+        :param hints: Hints to be provided to the transcription engine
+        :param enable_automatic_punctuation: Enable Automatic Punctuation
+        :param kwargs: additional attributes
+
+        :returns: <Transcription> element
+        """
+        return self.nest(
+            Transcription(
+                name=name,
+                track=track,
+                status_callback_url=status_callback_url,
+                status_callback_method=status_callback_method,
+                inbound_track_label=inbound_track_label,
+                outbound_track_label=outbound_track_label,
+                partial_results=partial_results,
+                language_code=language_code,
+                transcription_engine=transcription_engine,
+                profanity_filter=profanity_filter,
+                speech_model=speech_model,
+                hints=hints,
+                enable_automatic_punctuation=enable_automatic_punctuation,
+                **kwargs
+            )
+        )
+
+
+class Transcription(TwiML):
+    """<Transcription> TwiML Noun"""
 
     def __init__(self, **kwargs):
-        super(Siprec, self).__init__(**kwargs)
-        self.name = "Siprec"
+        super(Transcription, self).__init__(**kwargs)
+        self.name = "Transcription"
+
+    def config(self, name=None, value=None, **kwargs):
+        """
+        Create a <Config> element
+
+        :param name: The name of the custom config
+        :param value: The value of the custom config
+        :param kwargs: additional attributes
+
+        :returns: <Config> element
+        """
+        return self.nest(Config(name=name, value=value, **kwargs))
 
     def parameter(self, name=None, value=None, **kwargs):
         """
@@ -692,6 +760,34 @@ def __init__(self, **kwargs):
         self.name = "Parameter"
 
 
+class Config(TwiML):
+    """<Config> TwiML Noun"""
+
+    def __init__(self, **kwargs):
+        super(Config, self).__init__(**kwargs)
+        self.name = "Config"
+
+
+class Siprec(TwiML):
+    """<Siprec> TwiML Noun"""
+
+    def __init__(self, **kwargs):
+        super(Siprec, self).__init__(**kwargs)
+        self.name = "Siprec"
+
+    def parameter(self, name=None, value=None, **kwargs):
+        """
+        Create a <Parameter> element
+
+        :param name: The name of the custom parameter
+        :param value: The value of the custom parameter
+        :param kwargs: additional attributes
+
+        :returns: <Parameter> element
+        """
+        return self.nest(Parameter(name=name, value=value, **kwargs))
+
+
 class Stream(TwiML):
     """<Stream> TwiML Noun"""
 
@@ -786,6 +882,62 @@ def siprec(
             )
         )
 
+    def transcription(
+        self,
+        name=None,
+        track=None,
+        status_callback_url=None,
+        status_callback_method=None,
+        inbound_track_label=None,
+        outbound_track_label=None,
+        partial_results=None,
+        language_code=None,
+        transcription_engine=None,
+        profanity_filter=None,
+        speech_model=None,
+        hints=None,
+        enable_automatic_punctuation=None,
+        **kwargs
+    ):
+        """
+        Create a <Transcription> element
+
+        :param name: Friendly name given to the Transcription
+        :param track: Track to be analyze by the provider
+        :param status_callback_url: Status Callback URL
+        :param status_callback_method: Status Callback URL method
+        :param inbound_track_label: Friendly name given to the Inbound Track
+        :param outbound_track_label: Friendly name given to the Outbound Track Label
+        :param partial_results: Indicates if partial results are going to be send to the customer
+        :param language_code: Language Code used by the transcription engine
+        :param transcription_engine: Transcription Engine to be used
+        :param profanity_filter: Enable Profanity Filter
+        :param speech_model: Speech Model used by the transcription engine
+        :param hints: Hints to be provided to the transcription engine
+        :param enable_automatic_punctuation: Enable Automatic Punctuation
+        :param kwargs: additional attributes
+
+        :returns: <Transcription> element
+        """
+        return self.nest(
+            Transcription(
+                name=name,
+                track=track,
+                status_callback_url=status_callback_url,
+                status_callback_method=status_callback_method,
+                inbound_track_label=inbound_track_label,
+                outbound_track_label=outbound_track_label,
+                partial_results=partial_results,
+                language_code=language_code,
+                transcription_engine=transcription_engine,
+                profanity_filter=profanity_filter,
+                speech_model=speech_model,
+                hints=hints,
+                enable_automatic_punctuation=enable_automatic_punctuation,
+                **kwargs
+            )
+        )
+
 
 class Prompt(TwiML):
     """<Prompt> Twiml Verb"""
@@ -2614,14 +2766,6 @@ def parameter(self, name=None, value=None, **kwargs):
         return self.nest(Parameter(name=name, value=value, **kwargs))
 
 
-class Config(TwiML):
-    """<Config> TwiML Noun"""
-
-    def __init__(self, **kwargs):
-        super(Config, self).__init__(**kwargs)
-        self.name = "Config"
-
-
 class Autopilot(TwiML):
     """<Autopilot> TwiML Noun"""