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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 run(self):
 """Runs the thread. Args: self (ThreadReturn):
 the ``ThreadReturn`` instance Returns: ``None`` """

        target = getattr(self, '_Thread__target', getattr(self, '_target', None))
        args = getattr(self, '_Thread__args', getattr(self, '_args', None))
        kwargs = getattr(self, '_Thread__kwargs', getattr(self, '_kwargs', None))
        if target is not None:
            self._return = target(*args, **kwargs)

        return None