docs: def console(loop, log):
      """Connect to receiver and show events as they occur.
  
      Pulls the following arguments from the command line (not method arguments):
  
      :param host:
          Hostname or IP Address of the device.
      :param port:
          TCP port number of the device.
      :param verbose:
          Show debug logging.
      """
      parser = argparse.ArgumentParser(description=console.__doc__)
      parser.add_argument('--host', default='127.0.0.1', help='IP or FQDN of AVR')
      parser.add_argument('--port', default='14999', help='Port of AVR')
      parser.add_argument('--verbose', '-v', action='count')
  
      args = parser.parse_args()
  
      if args.verbose:
          level = logging.DEBUG
      else:
          level = logging.INFO
  
      logging.basicConfig(level=level)
  
      def log_callback(message):
          """Receives event callback from Anthem Protocol class."""
          log.info('Callback invoked: %s' % message)
  
      host = args.host
      port = int(args.port)
  
      log.info('Connecting to Anthem AVR at %s:%i' % (host, port))
  
      conn = yield from anthemav.Connection.create(
          host=host, port=port, loop=loop, update_callback=log_callback)
  
      log.info('Power state is '+str(conn.protocol.power))
      conn.protocol.power = True
      log.info('Power state is '+str(conn.protocol.power))
  
      yield from asyncio.sleep(10, loop=loop)
  
      log.info('Panel brightness (raw) is '+str(conn.protocol.panel_brightness))
      log.info('Panel brightness (text) is '+str(conn.protocol.panel_brightness_text))