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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _on_queue_declareok(self, frame):
 """ Callback invoked when a queue is successfully declared. Args: frame (pika.frame.Method):
 The message sent from the server. """

        _log.info("Successfully declared the %s queue", frame.method.queue)
        for binding in self._bindings:
            if binding["queue"] == frame.method.queue:
                for key in binding["routing_keys"]:
                    _log.info(
                        "Asserting %s is bound to %s with the %s key",
                        binding["queue"],
                        binding["exchange"],
                        key,
                    )
                    self._channel.queue_bind(
                        callback=None,
                        queue=binding["queue"],
                        exchange=binding["exchange"],
                        routing_key=key,
                    )
                bc_args = dict(queue=frame.method.queue)
                if _pika_version < pkg_resources.parse_version("1.0.0b1"):
                    bc_args["consumer_callback"] = self._on_message
                else:
                    bc_args["on_message_callback"] = self._on_message
                tag = self._channel.basic_consume(**bc_args)
                self._consumers[tag] = binding["queue"]