code: async def on_raw_319(self, message):
          
          target, nickname, channels = message.params[:3]
          channels = {channel.lstrip() for channel in channels.strip().split(' ')}
          info = {
              'channels': channels
          }
  
          if nickname in self._pending['whois']:
              self._whois_info[nickname].update(info)
docs: WHOIS active channels.