code: async def teardown_client(self, client_id):
          
  
          client_info = self._client_info(client_id)
  
          self.adapter.remove_monitor(client_info['monitor'])
          conns = client_info['connections']
  
          for conn_string, conn_id in conns.items():
              try:
                  self._logger.debug("Disconnecting client %s from conn %s at teardown", client_id, conn_string)
                  await self.adapter.disconnect(conn_id)
              except:  #pylint:disable=bare-except; This is a finalization method that should not raise unexpectedly
                  self._logger.exception("Error disconnecting device during teardown_client: conn_string=%s", conn_string)
  
          del self._clients[client_id]
docs: Release all resources held by a client.
  
          This method must be called and awaited whenever a client is
          disconnected.  It ensures that all of the client's resources are
          properly released and any devices they have connected to are
          disconnected cleanly.
  
          Args:
              client_id (str): The client that we should tear down.
  
          Raises:
              ArgumentError: The client_id is unknown.