code: def revisionId(self):
          
          log.warning("'RevisionId' requested, ensure that you are don't need 'id'")
          revision_id = self.json()['revisionId']
          assert revision_id == self.id, "RevisionId differs id-{}!=revisionId-{}".format(self.id, revision_id)
          return revision_id
docs: revisionId differs from id, it is details of implementation use self.id
          :return: RevisionId