docs: def open_channel(self):
          """Open a new channel with RabbitMQ by issuing the Channel.Open RPC
          command. When RabbitMQ responds that the channel is open, the
          on_channel_open callback will be invoked by pika.
          """
          _logger.info('Creating a new channel')
          self._connection.channel(on_open_callback=self.on_channel_open)