code: def delete_binding(self, vhost, exchange, queue, rt_key):
          
  
          vhost = quote(vhost, '')
          exchange = quote(exchange, '')
          queue = quote(queue, '')
          body = ''
          path = Client.urls['rt_bindings_between_exch_queue'] % (vhost,
                                                                  exchange,
                                                                  queue,
                                                                  rt_key)
          return self._call(path, 'DELETE', headers=Client.json_headers)
docs: Deletes a binding between an exchange and a queue on a given vhost.
  
          :param string vhost: vhost housing the exchange/queue to bind
          :param string exchange: the target exchange of the binding
          :param string queue: the queue to bind to the exchange
          :param string rt_key: the routing key to use for the binding