Method __init__

lib/sqlalchemy/orm/decl_base.py:332–347

(
        self,
        registry: _RegistryType,
        cls_: Type[Any],
    )

    declared_attr_reg: Dict[declared_attr[Any], Any]

    def __init__(
        self,
        registry: _RegistryType,
        cls_: Type[Any],
    ):
        super().__init__(cls_)
        self.properties = util.OrderedDict()
        self.declared_attr_reg = {}

        instrumentation.register_class(
            self.cls,
            finalize=False,
            registry=registry,
            declarative_scan=self,
            init_method=registry.constructor,
        )

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