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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 click(self, loc=None, button=mouse.LEFT):
 """ Clicks the specified mouse button. If ``loc`` is set, move the mouse to that Location first. Use button constants Mouse.LEFT, Mouse.MIDDLE, Mouse.RIGHT """

        if loc is not None:
            self.moveSpeed(loc)
        self._lock.acquire()
        mouse.click(button)
        self._lock.release()