Fix some webhook related type checker errors

discord/file.py

@@ -109,7 +109,7 @@ class File:
 
         self.spoiler = spoiler or (self.filename is not None and self.filename.startswith('SPOILER_'))
 
-    def reset(self, *, seek: bool = True) -> None:
+    def reset(self, *, seek: Union[int, bool] = True) -> None:
         # The `seek` parameter is needed because
         # the retry-loop is iterated over multiple times
         # starting from 0, as an implementation quirk

discord/utils.py

@@ -464,8 +464,8 @@ def to_json(obj: Any) -> str:
     return json.dumps(obj, separators=(',', ':'), ensure_ascii=True)
 
 
-def _parse_ratelimit_header(request: _RequestLike, *, use_clock: bool = False) -> float:
-    reset_after = request.headers.get('X-Ratelimit-Reset-After')
+def _parse_ratelimit_header(request: Any, *, use_clock: bool = False) -> float:
+    reset_after: Optional[str] = request.headers.get('X-Ratelimit-Reset-After')
     if use_clock or not reset_after:
         utc = datetime.timezone.utc
         now = datetime.datetime.now(utc)

discord/webhook/async_.py

@@ -625,6 +625,8 @@ class WebhookMessage(Message):
     .. versionadded:: 1.6
     """
 
+    _state: _WebhookState
+
     async def edit(
         self,
         content: Optional[str] = MISSING,
@@ -794,7 +796,7 @@ class BaseWebhook(Hashable):
         If this is a partial webhook, then this will always return ``None``.
         """
         guild = self.guild
-        return guild and guild.get_channel(self.channel_id)
+        return guild and guild.get_channel(self.channel_id)  # type: ignore
 
     @property
     def created_at(self) -> datetime.datetime:
@@ -1148,7 +1150,7 @@ class Webhook(BaseWebhook):
     def _create_message(self, data):
         state = _WebhookState(self, parent=self._state)
         channel = self.channel or Object(id=int(data['channel_id']))
-        return WebhookMessage(data=data, state=state, channel=channel)
+        return WebhookMessage(data=data, state=state, channel=channel)  # type: ignore
 
     @overload
     async def send(