Fix type errors

Author: KoolADE85

dash/_callback.py

@@ -540,7 +540,7 @@ def _prepare_response(
     allow_dynamic_callbacks,
 ):
     """Prepare the response object based on the callback output."""
-    component_ids = collections.defaultdict(dict)
+    component_ids: dict = collections.defaultdict(dict)
 
     if has_output:
         if not multi:

dash/types.py

@@ -73,3 +73,4 @@ class CallbackDispatchResponse(TypedDict):
     multi: NotRequired[bool]
     response: NotRequired[Dict[str, CallbackOutput]]
     sideUpdate: NotRequired[Dict[str, CallbackSideOutput]]
+    dist: NotRequired[List[Any]]