code: def removeUserFromGroup(self, user_id, thread_id=None):
          
          thread_id, thread_type = self._getThread(thread_id, None)
  
          data = {"uid": user_id, "tid": thread_id}
          j = self._post(self.req_url.REMOVE_USER, data, fix_request=True, as_json=True)
docs: Removes users from a group.
  
          :param user_id: User ID to remove
          :param thread_id: Group ID to remove people from. See :ref:`intro_threads`
          :raises: FBchatException if request failed