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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 _notify_change(self):
 """ After all changes have settled, tell Java it changed """

        d = self.declaration
        self._notify_count -= 1
        if self._notify_count == 0:
            #: Tell the UI we made changes
            self.adapter.notifyDataSetChanged(now=True)
            self.get_context().timed_call(
                500, self._queue_pending_calls)