feat:The request in the dispatch function has been type annotated

rest_framework/views.py

@@ -496,7 +496,7 @@ class APIView(View):
         self.args = args
         self.kwargs = kwargs
         request = self.initialize_request(request, *args, **kwargs)
-        self.request = request
+        self.request: Request = request
         self.headers = self.default_response_headers  # deprecate?
 
         try: