code: def get_joined_members(self, force_resync=False) -> List[User]:
          
          if force_resync:
              response = self.client.api.get_room_members(self.room_id)
              for event in response['chunk']:
                  if event['content']['membership'] == 'join':
                      user_id = event["state_key"]
                      if user_id not in self._members:
                          self._mkmembers(
                              User(
                                  self.client.api,
                                  user_id,
                                  event['content'].get('displayname'),
                              ),
                          )
          return list(self._members.values())
docs: Return a list of members of this room.