Method set_cls_attribute

lib/sqlalchemy/orm/decl_base.py:349–352

(self, attrname: str, value: _T)

        )

    def set_cls_attribute(self, attrname: str, value: _T) -> _T:
        manager = instrumentation.manager_of_class(self.cls)
        manager.install_member(attrname, value)
        return value

    def map(self, mapper_kw: _MapperKwArgs) -> Mapper[Any]:
        raise NotImplementedError()