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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def log_time(method):
 """ A decorator for methods which will time the method and then emit a log.debug message with the method name and how long it took to execute. """


    def timed(*args, **kwargs):
        tic = time_function()
        result = method(*args, **kwargs)
        log.debug('%s executed in %.4f seconds.',
                  method.__name__,
                  time_function() - tic)
        return result
    timed.__name__ = method.__name__
    timed.__doc__ = method.__doc__
    return timed