implement offset

ferris/channel.py

@@ -78,7 +78,7 @@ async def send(self, content: str) -> Message:
         )
         return Message(self._connection, m)
 
-    async def fetch_messages(self, limit: int = 100) -> List[Message]:
+    async def fetch_messages(self, limit: int = 100, offset: int = 0) -> List[Message]:
         """
         |coro|
 
@@ -90,14 +90,18 @@ async def fetch_messages(self, limit: int = 100) -> List[Message]:
             The maximum number of messages to fetch.
             Defaults to 100.
             Set it to None to fetch all messages.
+        
+        offset: int
+            The number of messages to skip.
+            Defaults to 0.
 
         Returns
         -------
         List[Message]
         """
         if limit is None:
             limit = 9223372036854775807
-        data = await self._connection.api.channels(self.id).messages.get(params={'limit': limit})
+        data = await self._connection.api.channels(self.id).messages.get(params={'limit': limit, 'offset': offset})
         return [Message(self._connection, m) for m in data['messages']]
 
     async def edit(self, name: str) -> Channel: