def person_change_history(self, pid):
        return self.base + "/platform/tree/persons/"+ pid +"/changes"
https://familysearch.org/developers/docs/api/tree/Person_Change_History_resource
dataset/ETHPy150Open AmEv7Fam/familysearch-python-sdk-opensource/familysearch/changeHistory.py/ChangeHistory.person_change_history