Function _declared_mapping_info

lib/sqlalchemy/orm/decl_base.py:122–132

(
    cls: Type[Any],
)

def _declared_mapping_info(
    cls: Type[Any],
) -> Optional[Union[_DeferredDeclarativeConfig, Mapper[Any]]]:
    # deferred mapping
    if _DeferredDeclarativeConfig.has_cls(cls):
        return _DeferredDeclarativeConfig.config_for_cls(cls)
    # regular mapping
    elif _is_mapped_class(cls):
        return class_mapper(cls, configure=False)
    else:
        return None


def _is_supercls_for_inherits(cls: Type[Any]) -> bool: