Merge pull request Automattic#15038 from Automattic/vkarpov15/Automatticgh-14976

types(cursor): correct `asyncIterator` and `asyncDispose` for TypeScript with lib: 'esnext'

Author: vkarpov15

types/cursor.d.ts

@@ -11,8 +11,10 @@ declare module 'mongoose' {
     signal?: AbortSignal;
   }
 
-  class Cursor<DocType = any, Options = never> extends stream.Readable {
-    [Symbol.asyncIterator](): AsyncIterableIterator<DocType>;
+  class Cursor<DocType = any, Options = never, NextResultType = DocType | null> extends stream.Readable {
+    [Symbol.asyncIterator](): Cursor<IteratorResult<DocType>, Options, IteratorResult<DocType>>;
+
+    [Symbol.asyncDispose](): Promise<void>;
 
     /**
      * Adds a [cursor flag](https://mongodb.github.io/node-mongodb-native/4.9/classes/FindCursor.html#addCursorFlag).
@@ -58,7 +60,7 @@ declare module 'mongoose' {
      * Get the next document from this cursor. Will return `null` when there are
      * no documents left.
      */
-    next(): Promise<DocType | null>;
+    next(): Promise<NextResultType>;
 
     options: Options;
   }