Fix #392

Author: CodeWithSwastik

discord/commands/commands.py

@@ -540,11 +540,16 @@ async def invoke_autocomplete_callback(self, ctx: AutocompleteContext):
                 ctx.focused = option
                 ctx.value = op.get("value")
                 ctx.options = values
-                if asyncio.iscoroutinefunction(option.autocomplete):
-                    result = await option.autocomplete(ctx)
+
+                if len(inspect.signature(option.autocomplete).parameters) == 2:
+                    result = option.autocomplete(getattr(option.autocomplete, "__self__", ctx.cog), ctx)
                 else:
                     result = option.autocomplete(ctx)
 
+                if asyncio.iscoroutinefunction(option.autocomplete):
+                    result = await result
+                    
+
                 choices = [
                     o if isinstance(o, OptionChoice) else OptionChoice(o)
                     for o in result