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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 result(self):
 """ Returns the result of the Future, which makes the call synchronous if the result has not been computed yet. :return: Result of the Future. """

        self._reactor_check()
        self._event.wait()
        if self._exception:
            six.reraise(self._exception.__class__, self._exception, self._traceback)
        if self._result == NONE_RESULT:
            return None
        else:
            return self._result