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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 refresh_gui(delay=0.0001, wait=0.0001):
 """Use up all the events waiting to be run :param delay: Time to wait before using events :param wait: Time to wait between iterations of events This function will block until all pending events are emitted. This is useful in testing to ensure signals and other asynchronous functionality is required to take place. """

    time.sleep(delay)
    while gtk.events_pending():
        gtk.main_iteration_do(block=False)
        time.sleep(wait)