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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 _page_update(self, event):
 """ Checks if the newly created object is a wikipage.. If so, rerenders the automatic index. :param event: objectchange or objectcreation event """

        try:
            if event.schema == 'wikipage':
                self._update_index()

        except Exception as e:
            self.log("Page creation notification error: ", event, e,
                     type(e), lvl=error)