human
Solve the following python programming problem given the following code:
def publish(self, payload, exchange, routing_key = '') : 
    with self.pool.acquire (block = True) as connection : 
        retry_wrapper = ConnectionRetryWrapper (cluster_size = self.cluster_size, logger = LOG) 
        def do_publish(connection, channel) : 
            producer = Producer (channel) 
            kwargs = { 
                'body' : payload, 
                'exchange' : exchange, 
                'routing_key' : routing_key, 
                'serializer' : 'pickle', 
} 
            retry_wrapper.ensured (connection = connection, obj = producer, to_ensure_func = producer.publish, ** kwargs) 
retry_wrapper.run (connection = connection, wrapped_callback = routing_key) 

    
    

    Fix the buggy line: retry_wrapper.run (connection = connection, wrapped_callback = routing_key)
assistant
#Here is Python code to fix the buggy line: retry_wrapper.

retry_wrapper.run (connection = connection, wrapped_callback = def do_publish()