@classmethod<EOL><INDENT>def key_for_property(cls, kind, property):<DEDENT>
return model.Key(Kind.KIND_NAME, kind, Property.KIND_NAME, property)<EOL>
Return the __property__ key for property of kind.

        Args:
          kind: kind whose key is requested.
          property: property whose key is requested.

        Returns:
          The key for property of kind.