code: def int_id(self):
          "int: This key's numeric id."
          id_or_name = self.id_or_name
          if id_or_name is not None and isinstance(id_or_name, int):
              return id_or_name
          return Nonf int_id(self):
          "int: This key's numeric id."
          id_or_name = self.id_or_name
          if id_or_name is not None and isinstance(id_or_name, int):
              return id_or_name
          return None
docs: int: This key's numeric id.