human
Solve the following python programming problem given the following code:
def add_listener(self, include_value = False, item_added = None, item_removed = None) : 
    request = set_add_listener_codec.encode_request (self.name, include_value, False) 
    def handle_event_item(item, uuid, event_type) : 
        item = (item if include_value else None) 
        member = self._client.cluster.get_member_by_uuid (uuid) 
        item_event = ItemEvent (self.name, item, event_type, member, self._to_object) 
        if (event_type == ItemEventType.added) : 
            if item_added : 
                item_added (item_event) 
else : 
            if item_removed : 
                item_removed (item_event) 
return self._start_listening (request, (lambda m : set_add_listener_codec.handle (m, handle_event_item)), (lambda r : set_add_listener_codec.decode_response (r) ['response']), handle_event_item.partition_key) 

    
    

    Fix the buggy line: return self._start_listening (request, (lambda m : set_add_listener_codec.handle (m, handle_event_item)), (lambda r : set_add_listener_codec.decode_response (r) ['response']), handle_event_item.partition_key)
assistant
#Here is Python program to fix the buggy line: return self.

return self._start_listening (request, (lambda m : set_add_listener_codec.handle (m, handle_event_item)), (lambda r : set_add_listener_codec.decode_response (r) ['response']), self.partition_key)