Update optional argument type hints

src/parsenvy/parsenvy.py

@@ -7,7 +7,7 @@
 
 import builtins
 from os import getenv
-from typing import Any, List, Optional, Set, Tuple
+from typing import Any, List, Set, Tuple
 
 
 TRUES = ["true", "1"]
@@ -16,8 +16,8 @@
 
 def bool(
     env_var: builtins.str,
-    default: Optional[builtins.bool] = None,
-) -> Optional[builtins.bool]:
+    default: builtins.bool | None = None,
+) -> builtins.bool | None:
     """
     Parse environment variable value into a boolean.
 
@@ -46,8 +46,8 @@ def bool(
 
 def int(
     env_var: builtins.str,
-    default: Optional[builtins.int] = None,
-) -> Optional[builtins.int]:
+    default: builtins.int | None = None,
+) -> builtins.int | None:
     """
     Parse environment variable value into a integer.
 
@@ -73,8 +73,8 @@ def int(
 
 def float(
     env_var: builtins.str,
-    default: Optional[builtins.float] = None,
-) -> Optional[builtins.float]:
+    default: builtins.float | None = None,
+) -> builtins.float | None:
     """
     Parse environment variable value into a float.
 
@@ -98,16 +98,13 @@ def float(
         )
 
 
-def list(
-    env_var: builtins.str,
-    default: Optional[List[Any]] = None,
-) -> Optional[List[Any]]:
+def list(env_var: builtins.str, default: List[Any] | None = None) -> List[Any] | None:
     """
     Parse environment variable value into a list.
 
     Args:
         env_var (str): Name of desired environment variable.
-        default (List, optional): Optional fallback value.
+        default (list, optional): Optional fallback value.
 
     Returns:
         List (optional): Environment variable typecast into a list.
@@ -123,8 +120,8 @@ def list(
 
 def tuple(
     env_var: builtins.str,
-    default: Optional[Tuple[Any, ...]] = None,
-) -> Optional[Tuple[Any, ...]]:
+    default: Tuple[Any, ...] | None = None,
+) -> Tuple[Any, ...] | None:
     """
     Parse environment variable value into a tuple.
 
@@ -145,10 +142,7 @@ def tuple(
     return builtins.tuple(value.split(","))
 
 
-def set(
-    env_var: builtins.str,
-    default: Optional[Set[Any]] = None,
-) -> Optional[Set[Any]]:
+def set(env_var: builtins.str, default: Set[Any] | None = None) -> Set[Any] | None:
     """
     Parse environment variable value into a set.
 
@@ -171,8 +165,8 @@ def set(
 
 def str(
     env_var: builtins.str,
-    default: Optional[builtins.str] = None,
-) -> Optional[builtins.str]:
+    default: builtins.str | None = None,
+) -> builtins.str | None:
     """
     Parse environment variable value into a str.