code: def raw_callback(self, raw_packet):
          
          if not ';PONG;' in raw_packet:
              log.info('forwarding packet %s to clients', raw_packet)
          else:
              log.debug('forwarding packet %s to clients', raw_packet)
          writers = [i[1] for i in list(clients)]
          for writer in writers:
              writer.write(str(raw_packet).encode() + CRLF)
docs: Send data to all connected clients.