human
Solve the following python programming problem given the following code:
@ vimap.util.instancemethod_runonce () 
def close(self) : 
    '
        Closes any queues from the main method side. For input and output
        queues, we will close the queue, join the queue thread, and delete
        the corresponding attribute so any future attempted accesses will
        fail.
        ' 
    finalize_methods = [] 
    def _wait_close(queue_name, pipe_name, pipe) : 
        "Works around bugs (or misuse?) in multiprocessing.queue by waiting for
            a queue's internal pipes to actually be closed.

            See https://github.com/gatoatigrado/vimap/issues/14 for more information.
            " 
        if (not pipe.closed) : 
            if self.debug : 
                print ('Force-closing {0} pipe for queue {1}'.format (pipe_name, queue_name)) 
pipe.close () 
def _close_queue(name, queue) : 
        if self.debug : 
            print ('Main thread queue manager: Closing and joining {0} queue'.format (name)) 
queue.close () 
        queue.join_thread () 
        if (hasattr (queue, '_reader') and hasattr (queue, '_writer')) : 
            (reader_pipe, writer_pipe) = (queue._reader, queue._writer) 
            finalize_methods.append ((lambda : _wait_close (name, 'reader', reader_pipe))) 
            finalize_methods.append ((lambda : _wait_close (name, 'writer', writer_pipe))) 
_close_queue ('input', self.input_queue) 
    del self.input_queue 
    assert self.output_queue.empty (), "You should *not* close the output queue before it's all consumed, else any workers putting items into the queuewill hang!" 
    _close_queue ('output', finalize_method.output_queue) 
    del self.output_queue 
    for finalize_method in finalize_methods : 
        finalize_method () 

    
    

    Fix the buggy line: _close_queue ('output', finalize_method.output_queue)
assistant
#Here is Python code to fix the buggy line: _close_queue ('output', finalize_method.

_close_queue ('output', self.output_queue)