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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 wait_for_window_focus(self, window, want_focus):
 """ Wait for a window to have or lose focus. :param window: The window to wait on :param want_focus: If 1, wait for focus. If 0, wait for loss of focus. """

        _libxdo.xdo_wait_for_window_focus(self._xdo, window, want_focus)