diff --git a/types/generated-snapshot/2021-11-03/index.d.ts b/types/generated-snapshot/2021-11-03/index.d.ts
index 19a8f0c3a31..e0abc000d03 100755
--- a/types/generated-snapshot/2021-11-03/index.d.ts
+++ b/types/generated-snapshot/2021-11-03/index.d.ts
@@ -1416,20 +1416,44 @@ interface Element {
   hasAttribute(name: string): boolean;
   setAttribute(name: string, value: string): Element;
   removeAttribute(name: string): Element;
-  before(content: string, options?: ContentOptions): Element;
-  after(content: string, options?: ContentOptions): Element;
-  prepend(content: string, options?: ContentOptions): Element;
-  append(content: string, options?: ContentOptions): Element;
-  replace(content: string, options?: ContentOptions): Element;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  prepend(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  append(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   remove(): Element;
   removeAndKeepContent(): Element;
-  setInnerContent(content: string, options?: ContentOptions): Element;
+  setInnerContent(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   onEndTag(handler: (tag: EndTag) => void | Promise<void>): void;
 }
 interface EndTag {
   name: string;
-  before(content: string, options?: ContentOptions): EndTag;
-  after(content: string, options?: ContentOptions): EndTag;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
   remove(): EndTag;
 }
 interface Comment {
@@ -1444,9 +1468,18 @@ interface Text {
   readonly text: string;
   readonly lastInTextNode: boolean;
   readonly removed: boolean;
-  before(content: string, options?: ContentOptions): Text;
-  after(content: string, options?: ContentOptions): Text;
-  replace(content: string, options?: ContentOptions): Text;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
   remove(): Text;
 }
 interface DocumentEnd {
diff --git a/types/generated-snapshot/2021-11-03/index.ts b/types/generated-snapshot/2021-11-03/index.ts
index f9742194c25..e9582ba1a31 100755
--- a/types/generated-snapshot/2021-11-03/index.ts
+++ b/types/generated-snapshot/2021-11-03/index.ts
@@ -1421,20 +1421,44 @@ export interface Element {
   hasAttribute(name: string): boolean;
   setAttribute(name: string, value: string): Element;
   removeAttribute(name: string): Element;
-  before(content: string, options?: ContentOptions): Element;
-  after(content: string, options?: ContentOptions): Element;
-  prepend(content: string, options?: ContentOptions): Element;
-  append(content: string, options?: ContentOptions): Element;
-  replace(content: string, options?: ContentOptions): Element;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  prepend(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  append(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   remove(): Element;
   removeAndKeepContent(): Element;
-  setInnerContent(content: string, options?: ContentOptions): Element;
+  setInnerContent(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   onEndTag(handler: (tag: EndTag) => void | Promise<void>): void;
 }
 export interface EndTag {
   name: string;
-  before(content: string, options?: ContentOptions): EndTag;
-  after(content: string, options?: ContentOptions): EndTag;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
   remove(): EndTag;
 }
 export interface Comment {
@@ -1449,9 +1473,18 @@ export interface Text {
   readonly text: string;
   readonly lastInTextNode: boolean;
   readonly removed: boolean;
-  before(content: string, options?: ContentOptions): Text;
-  after(content: string, options?: ContentOptions): Text;
-  replace(content: string, options?: ContentOptions): Text;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
   remove(): Text;
 }
 export interface DocumentEnd {
diff --git a/types/generated-snapshot/2022-01-31/index.d.ts b/types/generated-snapshot/2022-01-31/index.d.ts
index c4575ca8501..a103aff8282 100755
--- a/types/generated-snapshot/2022-01-31/index.d.ts
+++ b/types/generated-snapshot/2022-01-31/index.d.ts
@@ -1422,20 +1422,44 @@ interface Element {
   hasAttribute(name: string): boolean;
   setAttribute(name: string, value: string): Element;
   removeAttribute(name: string): Element;
-  before(content: string, options?: ContentOptions): Element;
-  after(content: string, options?: ContentOptions): Element;
-  prepend(content: string, options?: ContentOptions): Element;
-  append(content: string, options?: ContentOptions): Element;
-  replace(content: string, options?: ContentOptions): Element;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  prepend(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  append(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   remove(): Element;
   removeAndKeepContent(): Element;
-  setInnerContent(content: string, options?: ContentOptions): Element;
+  setInnerContent(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   onEndTag(handler: (tag: EndTag) => void | Promise<void>): void;
 }
 interface EndTag {
   name: string;
-  before(content: string, options?: ContentOptions): EndTag;
-  after(content: string, options?: ContentOptions): EndTag;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
   remove(): EndTag;
 }
 interface Comment {
@@ -1450,9 +1474,18 @@ interface Text {
   readonly text: string;
   readonly lastInTextNode: boolean;
   readonly removed: boolean;
-  before(content: string, options?: ContentOptions): Text;
-  after(content: string, options?: ContentOptions): Text;
-  replace(content: string, options?: ContentOptions): Text;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
   remove(): Text;
 }
 interface DocumentEnd {
diff --git a/types/generated-snapshot/2022-01-31/index.ts b/types/generated-snapshot/2022-01-31/index.ts
index 03709d2b9f7..3c731c385a6 100755
--- a/types/generated-snapshot/2022-01-31/index.ts
+++ b/types/generated-snapshot/2022-01-31/index.ts
@@ -1427,20 +1427,44 @@ export interface Element {
   hasAttribute(name: string): boolean;
   setAttribute(name: string, value: string): Element;
   removeAttribute(name: string): Element;
-  before(content: string, options?: ContentOptions): Element;
-  after(content: string, options?: ContentOptions): Element;
-  prepend(content: string, options?: ContentOptions): Element;
-  append(content: string, options?: ContentOptions): Element;
-  replace(content: string, options?: ContentOptions): Element;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  prepend(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  append(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   remove(): Element;
   removeAndKeepContent(): Element;
-  setInnerContent(content: string, options?: ContentOptions): Element;
+  setInnerContent(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   onEndTag(handler: (tag: EndTag) => void | Promise<void>): void;
 }
 export interface EndTag {
   name: string;
-  before(content: string, options?: ContentOptions): EndTag;
-  after(content: string, options?: ContentOptions): EndTag;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
   remove(): EndTag;
 }
 export interface Comment {
@@ -1455,9 +1479,18 @@ export interface Text {
   readonly text: string;
   readonly lastInTextNode: boolean;
   readonly removed: boolean;
-  before(content: string, options?: ContentOptions): Text;
-  after(content: string, options?: ContentOptions): Text;
-  replace(content: string, options?: ContentOptions): Text;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
   remove(): Text;
 }
 export interface DocumentEnd {
diff --git a/types/generated-snapshot/2022-03-21/index.d.ts b/types/generated-snapshot/2022-03-21/index.d.ts
index e929c0f17ed..eabe2addc14 100755
--- a/types/generated-snapshot/2022-03-21/index.d.ts
+++ b/types/generated-snapshot/2022-03-21/index.d.ts
@@ -1440,20 +1440,44 @@ interface Element {
   hasAttribute(name: string): boolean;
   setAttribute(name: string, value: string): Element;
   removeAttribute(name: string): Element;
-  before(content: string, options?: ContentOptions): Element;
-  after(content: string, options?: ContentOptions): Element;
-  prepend(content: string, options?: ContentOptions): Element;
-  append(content: string, options?: ContentOptions): Element;
-  replace(content: string, options?: ContentOptions): Element;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  prepend(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  append(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   remove(): Element;
   removeAndKeepContent(): Element;
-  setInnerContent(content: string, options?: ContentOptions): Element;
+  setInnerContent(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   onEndTag(handler: (tag: EndTag) => void | Promise<void>): void;
 }
 interface EndTag {
   name: string;
-  before(content: string, options?: ContentOptions): EndTag;
-  after(content: string, options?: ContentOptions): EndTag;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
   remove(): EndTag;
 }
 interface Comment {
@@ -1468,9 +1492,18 @@ interface Text {
   readonly text: string;
   readonly lastInTextNode: boolean;
   readonly removed: boolean;
-  before(content: string, options?: ContentOptions): Text;
-  after(content: string, options?: ContentOptions): Text;
-  replace(content: string, options?: ContentOptions): Text;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
   remove(): Text;
 }
 interface DocumentEnd {
diff --git a/types/generated-snapshot/2022-03-21/index.ts b/types/generated-snapshot/2022-03-21/index.ts
index 0c8eeef7df9..644d47b6c0a 100755
--- a/types/generated-snapshot/2022-03-21/index.ts
+++ b/types/generated-snapshot/2022-03-21/index.ts
@@ -1445,20 +1445,44 @@ export interface Element {
   hasAttribute(name: string): boolean;
   setAttribute(name: string, value: string): Element;
   removeAttribute(name: string): Element;
-  before(content: string, options?: ContentOptions): Element;
-  after(content: string, options?: ContentOptions): Element;
-  prepend(content: string, options?: ContentOptions): Element;
-  append(content: string, options?: ContentOptions): Element;
-  replace(content: string, options?: ContentOptions): Element;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  prepend(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  append(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   remove(): Element;
   removeAndKeepContent(): Element;
-  setInnerContent(content: string, options?: ContentOptions): Element;
+  setInnerContent(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   onEndTag(handler: (tag: EndTag) => void | Promise<void>): void;
 }
 export interface EndTag {
   name: string;
-  before(content: string, options?: ContentOptions): EndTag;
-  after(content: string, options?: ContentOptions): EndTag;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
   remove(): EndTag;
 }
 export interface Comment {
@@ -1473,9 +1497,18 @@ export interface Text {
   readonly text: string;
   readonly lastInTextNode: boolean;
   readonly removed: boolean;
-  before(content: string, options?: ContentOptions): Text;
-  after(content: string, options?: ContentOptions): Text;
-  replace(content: string, options?: ContentOptions): Text;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
   remove(): Text;
 }
 export interface DocumentEnd {
diff --git a/types/generated-snapshot/2022-08-04/index.d.ts b/types/generated-snapshot/2022-08-04/index.d.ts
index fa9046bdb48..8706e551807 100755
--- a/types/generated-snapshot/2022-08-04/index.d.ts
+++ b/types/generated-snapshot/2022-08-04/index.d.ts
@@ -1440,20 +1440,44 @@ interface Element {
   hasAttribute(name: string): boolean;
   setAttribute(name: string, value: string): Element;
   removeAttribute(name: string): Element;
-  before(content: string, options?: ContentOptions): Element;
-  after(content: string, options?: ContentOptions): Element;
-  prepend(content: string, options?: ContentOptions): Element;
-  append(content: string, options?: ContentOptions): Element;
-  replace(content: string, options?: ContentOptions): Element;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  prepend(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  append(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   remove(): Element;
   removeAndKeepContent(): Element;
-  setInnerContent(content: string, options?: ContentOptions): Element;
+  setInnerContent(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   onEndTag(handler: (tag: EndTag) => void | Promise<void>): void;
 }
 interface EndTag {
   name: string;
-  before(content: string, options?: ContentOptions): EndTag;
-  after(content: string, options?: ContentOptions): EndTag;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
   remove(): EndTag;
 }
 interface Comment {
@@ -1468,9 +1492,18 @@ interface Text {
   readonly text: string;
   readonly lastInTextNode: boolean;
   readonly removed: boolean;
-  before(content: string, options?: ContentOptions): Text;
-  after(content: string, options?: ContentOptions): Text;
-  replace(content: string, options?: ContentOptions): Text;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
   remove(): Text;
 }
 interface DocumentEnd {
diff --git a/types/generated-snapshot/2022-08-04/index.ts b/types/generated-snapshot/2022-08-04/index.ts
index d60f657a56a..63c668152d0 100755
--- a/types/generated-snapshot/2022-08-04/index.ts
+++ b/types/generated-snapshot/2022-08-04/index.ts
@@ -1445,20 +1445,44 @@ export interface Element {
   hasAttribute(name: string): boolean;
   setAttribute(name: string, value: string): Element;
   removeAttribute(name: string): Element;
-  before(content: string, options?: ContentOptions): Element;
-  after(content: string, options?: ContentOptions): Element;
-  prepend(content: string, options?: ContentOptions): Element;
-  append(content: string, options?: ContentOptions): Element;
-  replace(content: string, options?: ContentOptions): Element;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  prepend(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  append(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   remove(): Element;
   removeAndKeepContent(): Element;
-  setInnerContent(content: string, options?: ContentOptions): Element;
+  setInnerContent(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   onEndTag(handler: (tag: EndTag) => void | Promise<void>): void;
 }
 export interface EndTag {
   name: string;
-  before(content: string, options?: ContentOptions): EndTag;
-  after(content: string, options?: ContentOptions): EndTag;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
   remove(): EndTag;
 }
 export interface Comment {
@@ -1473,9 +1497,18 @@ export interface Text {
   readonly text: string;
   readonly lastInTextNode: boolean;
   readonly removed: boolean;
-  before(content: string, options?: ContentOptions): Text;
-  after(content: string, options?: ContentOptions): Text;
-  replace(content: string, options?: ContentOptions): Text;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
   remove(): Text;
 }
 export interface DocumentEnd {
diff --git a/types/generated-snapshot/2022-10-31/index.d.ts b/types/generated-snapshot/2022-10-31/index.d.ts
index 7058bb1794d..64317239bdf 100755
--- a/types/generated-snapshot/2022-10-31/index.d.ts
+++ b/types/generated-snapshot/2022-10-31/index.d.ts
@@ -1440,20 +1440,44 @@ interface Element {
   hasAttribute(name: string): boolean;
   setAttribute(name: string, value: string): Element;
   removeAttribute(name: string): Element;
-  before(content: string, options?: ContentOptions): Element;
-  after(content: string, options?: ContentOptions): Element;
-  prepend(content: string, options?: ContentOptions): Element;
-  append(content: string, options?: ContentOptions): Element;
-  replace(content: string, options?: ContentOptions): Element;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  prepend(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  append(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   remove(): Element;
   removeAndKeepContent(): Element;
-  setInnerContent(content: string, options?: ContentOptions): Element;
+  setInnerContent(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   onEndTag(handler: (tag: EndTag) => void | Promise<void>): void;
 }
 interface EndTag {
   name: string;
-  before(content: string, options?: ContentOptions): EndTag;
-  after(content: string, options?: ContentOptions): EndTag;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
   remove(): EndTag;
 }
 interface Comment {
@@ -1468,9 +1492,18 @@ interface Text {
   readonly text: string;
   readonly lastInTextNode: boolean;
   readonly removed: boolean;
-  before(content: string, options?: ContentOptions): Text;
-  after(content: string, options?: ContentOptions): Text;
-  replace(content: string, options?: ContentOptions): Text;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
   remove(): Text;
 }
 interface DocumentEnd {
diff --git a/types/generated-snapshot/2022-10-31/index.ts b/types/generated-snapshot/2022-10-31/index.ts
index 13f5db8ba95..35de138200f 100755
--- a/types/generated-snapshot/2022-10-31/index.ts
+++ b/types/generated-snapshot/2022-10-31/index.ts
@@ -1445,20 +1445,44 @@ export interface Element {
   hasAttribute(name: string): boolean;
   setAttribute(name: string, value: string): Element;
   removeAttribute(name: string): Element;
-  before(content: string, options?: ContentOptions): Element;
-  after(content: string, options?: ContentOptions): Element;
-  prepend(content: string, options?: ContentOptions): Element;
-  append(content: string, options?: ContentOptions): Element;
-  replace(content: string, options?: ContentOptions): Element;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  prepend(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  append(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   remove(): Element;
   removeAndKeepContent(): Element;
-  setInnerContent(content: string, options?: ContentOptions): Element;
+  setInnerContent(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   onEndTag(handler: (tag: EndTag) => void | Promise<void>): void;
 }
 export interface EndTag {
   name: string;
-  before(content: string, options?: ContentOptions): EndTag;
-  after(content: string, options?: ContentOptions): EndTag;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
   remove(): EndTag;
 }
 export interface Comment {
@@ -1473,9 +1497,18 @@ export interface Text {
   readonly text: string;
   readonly lastInTextNode: boolean;
   readonly removed: boolean;
-  before(content: string, options?: ContentOptions): Text;
-  after(content: string, options?: ContentOptions): Text;
-  replace(content: string, options?: ContentOptions): Text;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
   remove(): Text;
 }
 export interface DocumentEnd {
diff --git a/types/generated-snapshot/2022-11-30/index.d.ts b/types/generated-snapshot/2022-11-30/index.d.ts
index 0c9a38292a8..d289f9a40ce 100755
--- a/types/generated-snapshot/2022-11-30/index.d.ts
+++ b/types/generated-snapshot/2022-11-30/index.d.ts
@@ -1445,20 +1445,44 @@ interface Element {
   hasAttribute(name: string): boolean;
   setAttribute(name: string, value: string): Element;
   removeAttribute(name: string): Element;
-  before(content: string, options?: ContentOptions): Element;
-  after(content: string, options?: ContentOptions): Element;
-  prepend(content: string, options?: ContentOptions): Element;
-  append(content: string, options?: ContentOptions): Element;
-  replace(content: string, options?: ContentOptions): Element;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  prepend(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  append(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   remove(): Element;
   removeAndKeepContent(): Element;
-  setInnerContent(content: string, options?: ContentOptions): Element;
+  setInnerContent(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   onEndTag(handler: (tag: EndTag) => void | Promise<void>): void;
 }
 interface EndTag {
   name: string;
-  before(content: string, options?: ContentOptions): EndTag;
-  after(content: string, options?: ContentOptions): EndTag;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
   remove(): EndTag;
 }
 interface Comment {
@@ -1473,9 +1497,18 @@ interface Text {
   readonly text: string;
   readonly lastInTextNode: boolean;
   readonly removed: boolean;
-  before(content: string, options?: ContentOptions): Text;
-  after(content: string, options?: ContentOptions): Text;
-  replace(content: string, options?: ContentOptions): Text;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
   remove(): Text;
 }
 interface DocumentEnd {
diff --git a/types/generated-snapshot/2022-11-30/index.ts b/types/generated-snapshot/2022-11-30/index.ts
index c2c7f426d8e..fab2ff3ab52 100755
--- a/types/generated-snapshot/2022-11-30/index.ts
+++ b/types/generated-snapshot/2022-11-30/index.ts
@@ -1450,20 +1450,44 @@ export interface Element {
   hasAttribute(name: string): boolean;
   setAttribute(name: string, value: string): Element;
   removeAttribute(name: string): Element;
-  before(content: string, options?: ContentOptions): Element;
-  after(content: string, options?: ContentOptions): Element;
-  prepend(content: string, options?: ContentOptions): Element;
-  append(content: string, options?: ContentOptions): Element;
-  replace(content: string, options?: ContentOptions): Element;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  prepend(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  append(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   remove(): Element;
   removeAndKeepContent(): Element;
-  setInnerContent(content: string, options?: ContentOptions): Element;
+  setInnerContent(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   onEndTag(handler: (tag: EndTag) => void | Promise<void>): void;
 }
 export interface EndTag {
   name: string;
-  before(content: string, options?: ContentOptions): EndTag;
-  after(content: string, options?: ContentOptions): EndTag;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
   remove(): EndTag;
 }
 export interface Comment {
@@ -1478,9 +1502,18 @@ export interface Text {
   readonly text: string;
   readonly lastInTextNode: boolean;
   readonly removed: boolean;
-  before(content: string, options?: ContentOptions): Text;
-  after(content: string, options?: ContentOptions): Text;
-  replace(content: string, options?: ContentOptions): Text;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
   remove(): Text;
 }
 export interface DocumentEnd {
diff --git a/types/generated-snapshot/2023-03-01/index.d.ts b/types/generated-snapshot/2023-03-01/index.d.ts
index 9fa9a8441bd..770ce88aa7f 100755
--- a/types/generated-snapshot/2023-03-01/index.d.ts
+++ b/types/generated-snapshot/2023-03-01/index.d.ts
@@ -1445,20 +1445,44 @@ interface Element {
   hasAttribute(name: string): boolean;
   setAttribute(name: string, value: string): Element;
   removeAttribute(name: string): Element;
-  before(content: string, options?: ContentOptions): Element;
-  after(content: string, options?: ContentOptions): Element;
-  prepend(content: string, options?: ContentOptions): Element;
-  append(content: string, options?: ContentOptions): Element;
-  replace(content: string, options?: ContentOptions): Element;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  prepend(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  append(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   remove(): Element;
   removeAndKeepContent(): Element;
-  setInnerContent(content: string, options?: ContentOptions): Element;
+  setInnerContent(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   onEndTag(handler: (tag: EndTag) => void | Promise<void>): void;
 }
 interface EndTag {
   name: string;
-  before(content: string, options?: ContentOptions): EndTag;
-  after(content: string, options?: ContentOptions): EndTag;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
   remove(): EndTag;
 }
 interface Comment {
@@ -1473,9 +1497,18 @@ interface Text {
   readonly text: string;
   readonly lastInTextNode: boolean;
   readonly removed: boolean;
-  before(content: string, options?: ContentOptions): Text;
-  after(content: string, options?: ContentOptions): Text;
-  replace(content: string, options?: ContentOptions): Text;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
   remove(): Text;
 }
 interface DocumentEnd {
diff --git a/types/generated-snapshot/2023-03-01/index.ts b/types/generated-snapshot/2023-03-01/index.ts
index d070e0470d8..e18feea7837 100755
--- a/types/generated-snapshot/2023-03-01/index.ts
+++ b/types/generated-snapshot/2023-03-01/index.ts
@@ -1450,20 +1450,44 @@ export interface Element {
   hasAttribute(name: string): boolean;
   setAttribute(name: string, value: string): Element;
   removeAttribute(name: string): Element;
-  before(content: string, options?: ContentOptions): Element;
-  after(content: string, options?: ContentOptions): Element;
-  prepend(content: string, options?: ContentOptions): Element;
-  append(content: string, options?: ContentOptions): Element;
-  replace(content: string, options?: ContentOptions): Element;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  prepend(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  append(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   remove(): Element;
   removeAndKeepContent(): Element;
-  setInnerContent(content: string, options?: ContentOptions): Element;
+  setInnerContent(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   onEndTag(handler: (tag: EndTag) => void | Promise<void>): void;
 }
 export interface EndTag {
   name: string;
-  before(content: string, options?: ContentOptions): EndTag;
-  after(content: string, options?: ContentOptions): EndTag;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
   remove(): EndTag;
 }
 export interface Comment {
@@ -1478,9 +1502,18 @@ export interface Text {
   readonly text: string;
   readonly lastInTextNode: boolean;
   readonly removed: boolean;
-  before(content: string, options?: ContentOptions): Text;
-  after(content: string, options?: ContentOptions): Text;
-  replace(content: string, options?: ContentOptions): Text;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
   remove(): Text;
 }
 export interface DocumentEnd {
diff --git a/types/generated-snapshot/2023-07-01/index.d.ts b/types/generated-snapshot/2023-07-01/index.d.ts
index c345274476a..79d21e63bc9 100755
--- a/types/generated-snapshot/2023-07-01/index.d.ts
+++ b/types/generated-snapshot/2023-07-01/index.d.ts
@@ -1445,20 +1445,44 @@ interface Element {
   hasAttribute(name: string): boolean;
   setAttribute(name: string, value: string): Element;
   removeAttribute(name: string): Element;
-  before(content: string, options?: ContentOptions): Element;
-  after(content: string, options?: ContentOptions): Element;
-  prepend(content: string, options?: ContentOptions): Element;
-  append(content: string, options?: ContentOptions): Element;
-  replace(content: string, options?: ContentOptions): Element;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  prepend(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  append(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   remove(): Element;
   removeAndKeepContent(): Element;
-  setInnerContent(content: string, options?: ContentOptions): Element;
+  setInnerContent(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   onEndTag(handler: (tag: EndTag) => void | Promise<void>): void;
 }
 interface EndTag {
   name: string;
-  before(content: string, options?: ContentOptions): EndTag;
-  after(content: string, options?: ContentOptions): EndTag;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
   remove(): EndTag;
 }
 interface Comment {
@@ -1473,9 +1497,18 @@ interface Text {
   readonly text: string;
   readonly lastInTextNode: boolean;
   readonly removed: boolean;
-  before(content: string, options?: ContentOptions): Text;
-  after(content: string, options?: ContentOptions): Text;
-  replace(content: string, options?: ContentOptions): Text;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
   remove(): Text;
 }
 interface DocumentEnd {
diff --git a/types/generated-snapshot/2023-07-01/index.ts b/types/generated-snapshot/2023-07-01/index.ts
index dabd5224051..141aaa0cd55 100755
--- a/types/generated-snapshot/2023-07-01/index.ts
+++ b/types/generated-snapshot/2023-07-01/index.ts
@@ -1450,20 +1450,44 @@ export interface Element {
   hasAttribute(name: string): boolean;
   setAttribute(name: string, value: string): Element;
   removeAttribute(name: string): Element;
-  before(content: string, options?: ContentOptions): Element;
-  after(content: string, options?: ContentOptions): Element;
-  prepend(content: string, options?: ContentOptions): Element;
-  append(content: string, options?: ContentOptions): Element;
-  replace(content: string, options?: ContentOptions): Element;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  prepend(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  append(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   remove(): Element;
   removeAndKeepContent(): Element;
-  setInnerContent(content: string, options?: ContentOptions): Element;
+  setInnerContent(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   onEndTag(handler: (tag: EndTag) => void | Promise<void>): void;
 }
 export interface EndTag {
   name: string;
-  before(content: string, options?: ContentOptions): EndTag;
-  after(content: string, options?: ContentOptions): EndTag;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
   remove(): EndTag;
 }
 export interface Comment {
@@ -1478,9 +1502,18 @@ export interface Text {
   readonly text: string;
   readonly lastInTextNode: boolean;
   readonly removed: boolean;
-  before(content: string, options?: ContentOptions): Text;
-  after(content: string, options?: ContentOptions): Text;
-  replace(content: string, options?: ContentOptions): Text;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
   remove(): Text;
 }
 export interface DocumentEnd {
diff --git a/types/generated-snapshot/experimental/index.d.ts b/types/generated-snapshot/experimental/index.d.ts
index c9c75b66774..9b7af065b7f 100755
--- a/types/generated-snapshot/experimental/index.d.ts
+++ b/types/generated-snapshot/experimental/index.d.ts
@@ -1453,20 +1453,44 @@ interface Element {
   hasAttribute(name: string): boolean;
   setAttribute(name: string, value: string): Element;
   removeAttribute(name: string): Element;
-  before(content: string, options?: ContentOptions): Element;
-  after(content: string, options?: ContentOptions): Element;
-  prepend(content: string, options?: ContentOptions): Element;
-  append(content: string, options?: ContentOptions): Element;
-  replace(content: string, options?: ContentOptions): Element;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  prepend(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  append(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   remove(): Element;
   removeAndKeepContent(): Element;
-  setInnerContent(content: string, options?: ContentOptions): Element;
+  setInnerContent(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   onEndTag(handler: (tag: EndTag) => void | Promise<void>): void;
 }
 interface EndTag {
   name: string;
-  before(content: string, options?: ContentOptions): EndTag;
-  after(content: string, options?: ContentOptions): EndTag;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
   remove(): EndTag;
 }
 interface Comment {
@@ -1481,9 +1505,18 @@ interface Text {
   readonly text: string;
   readonly lastInTextNode: boolean;
   readonly removed: boolean;
-  before(content: string, options?: ContentOptions): Text;
-  after(content: string, options?: ContentOptions): Text;
-  replace(content: string, options?: ContentOptions): Text;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
   remove(): Text;
 }
 interface DocumentEnd {
diff --git a/types/generated-snapshot/experimental/index.ts b/types/generated-snapshot/experimental/index.ts
index a5e148ed626..67bfcd18917 100755
--- a/types/generated-snapshot/experimental/index.ts
+++ b/types/generated-snapshot/experimental/index.ts
@@ -1458,20 +1458,44 @@ export interface Element {
   hasAttribute(name: string): boolean;
   setAttribute(name: string, value: string): Element;
   removeAttribute(name: string): Element;
-  before(content: string, options?: ContentOptions): Element;
-  after(content: string, options?: ContentOptions): Element;
-  prepend(content: string, options?: ContentOptions): Element;
-  append(content: string, options?: ContentOptions): Element;
-  replace(content: string, options?: ContentOptions): Element;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  prepend(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  append(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   remove(): Element;
   removeAndKeepContent(): Element;
-  setInnerContent(content: string, options?: ContentOptions): Element;
+  setInnerContent(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   onEndTag(handler: (tag: EndTag) => void | Promise<void>): void;
 }
 export interface EndTag {
   name: string;
-  before(content: string, options?: ContentOptions): EndTag;
-  after(content: string, options?: ContentOptions): EndTag;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
   remove(): EndTag;
 }
 export interface Comment {
@@ -1486,9 +1510,18 @@ export interface Text {
   readonly text: string;
   readonly lastInTextNode: boolean;
   readonly removed: boolean;
-  before(content: string, options?: ContentOptions): Text;
-  after(content: string, options?: ContentOptions): Text;
-  replace(content: string, options?: ContentOptions): Text;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
   remove(): Text;
 }
 export interface DocumentEnd {
diff --git a/types/generated-snapshot/oldest/index.d.ts b/types/generated-snapshot/oldest/index.d.ts
index 75c0bfbc79b..d1d799e6106 100755
--- a/types/generated-snapshot/oldest/index.d.ts
+++ b/types/generated-snapshot/oldest/index.d.ts
@@ -1416,20 +1416,44 @@ interface Element {
   hasAttribute(name: string): boolean;
   setAttribute(name: string, value: string): Element;
   removeAttribute(name: string): Element;
-  before(content: string, options?: ContentOptions): Element;
-  after(content: string, options?: ContentOptions): Element;
-  prepend(content: string, options?: ContentOptions): Element;
-  append(content: string, options?: ContentOptions): Element;
-  replace(content: string, options?: ContentOptions): Element;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  prepend(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  append(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   remove(): Element;
   removeAndKeepContent(): Element;
-  setInnerContent(content: string, options?: ContentOptions): Element;
+  setInnerContent(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   onEndTag(handler: (tag: EndTag) => void | Promise<void>): void;
 }
 interface EndTag {
   name: string;
-  before(content: string, options?: ContentOptions): EndTag;
-  after(content: string, options?: ContentOptions): EndTag;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
   remove(): EndTag;
 }
 interface Comment {
@@ -1444,9 +1468,18 @@ interface Text {
   readonly text: string;
   readonly lastInTextNode: boolean;
   readonly removed: boolean;
-  before(content: string, options?: ContentOptions): Text;
-  after(content: string, options?: ContentOptions): Text;
-  replace(content: string, options?: ContentOptions): Text;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
   remove(): Text;
 }
 interface DocumentEnd {
diff --git a/types/generated-snapshot/oldest/index.ts b/types/generated-snapshot/oldest/index.ts
index f8a068217e1..ad6de110a82 100755
--- a/types/generated-snapshot/oldest/index.ts
+++ b/types/generated-snapshot/oldest/index.ts
@@ -1421,20 +1421,44 @@ export interface Element {
   hasAttribute(name: string): boolean;
   setAttribute(name: string, value: string): Element;
   removeAttribute(name: string): Element;
-  before(content: string, options?: ContentOptions): Element;
-  after(content: string, options?: ContentOptions): Element;
-  prepend(content: string, options?: ContentOptions): Element;
-  append(content: string, options?: ContentOptions): Element;
-  replace(content: string, options?: ContentOptions): Element;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  prepend(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  append(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   remove(): Element;
   removeAndKeepContent(): Element;
-  setInnerContent(content: string, options?: ContentOptions): Element;
+  setInnerContent(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Element;
   onEndTag(handler: (tag: EndTag) => void | Promise<void>): void;
 }
 export interface EndTag {
   name: string;
-  before(content: string, options?: ContentOptions): EndTag;
-  after(content: string, options?: ContentOptions): EndTag;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): EndTag;
   remove(): EndTag;
 }
 export interface Comment {
@@ -1449,9 +1473,18 @@ export interface Text {
   readonly text: string;
   readonly lastInTextNode: boolean;
   readonly removed: boolean;
-  before(content: string, options?: ContentOptions): Text;
-  after(content: string, options?: ContentOptions): Text;
-  replace(content: string, options?: ContentOptions): Text;
+  before(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  after(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
+  replace(
+    content: string | ReadableStream | Response,
+    options?: ContentOptions,
+  ): Text;
   remove(): Text;
 }
 export interface DocumentEnd {