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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 invoke_in_mainloop(func, *args, **kwargs):
 """ Invoke a function in the mainloop, pass the data back. """

    results = queue.Queue()

    @gcall
    def run():
        try:
            data = func(*args, **kwargs)
            results.put(data)
            results.put(None)
        except BaseException:  # XXX: handle
            results.put(None)
            results.put(sys.exc_info())
            raise

    data = results.get()
    exception = results.get()

    if exception is None:
        return data
    else:
        tp, val, tb = results.get()
        raise tp, val, tb