code: def URLRabbitmqBroker(url, *, middleware=None):
      
      warnings.warn(
          "Use RabbitmqBroker with the 'url' parameter instead of URLRabbitmqBroker.",
          DeprecationWarning, stacklevel=2,
      )
      return RabbitmqBroker(url=url, middleware=middleware)
docs: Alias for the RabbitMQ broker that takes a connection URL as a
      positional argument.
  
      Parameters:
        url(str): A connection string.
        middleware(list[Middleware]): The middleware to add to this
          broker.