(self)
return _make_key(self)
Get the _ReferenceKey that represents this relation

        :return _ReferenceKey: A key for this relation.
Get the _ReferenceKey that represents this relation
Get the _ReferenceKey that represents this relation
def key(self):
        """Get the _ReferenceKey that represents this relation

        :return _ReferenceKey: A key for this relation.
        """
        return _make_key(self)
def key ( self ) : return _make_key ( self )