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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 extendleft(self, iterable):
 """Extend the left side of this GeventDeque by appending elements from the iterable argument. Note, the series of left appends results in reversing the order of elements in the iterable argument. """

        self._deque.extendleft(iterable)
        if len(self._deque) > 0:
            self.notEmpty.set()