'Bind a queue to an exchange with a bind key.
Bind a queue specified by name, to an exchange specified by name,
with a specific bind key. The queue and exchange must already
exist on the broker for the bind to complete successfully. Queues
may be bound to exchanges multiple times with different keys.
:param queue: The name of the queue to be bound.
:type queue: str
:param exchange: The name of the exchange that the queue should be
bound to.
:type exchange: str
:param routing_key: The bind key that the specified queue should
bind to the specified exchange with.
:type routing_key: str'

def queue_bind(self, queue, exchange, routing_key, **kwargs):

    self._broker.bind(exchange, queue, routing_key)
