Method _factory

lib/sqlalchemy/sql/selectable.py:1882–1892

(
        cls,
        selectable: FromClause[_KeyColCC_co],
        name: Optional[str] = None,
        flat: bool = False,
    )

    @classmethod
    def _factory(
        cls,
        selectable: FromClause[_KeyColCC_co],
        name: Optional[str] = None,
        flat: bool = False,
    ) -> NamedFromClause[_KeyColCC_co]:
        # mypy refuses to see the overload that has this returning
        # NamedFromClause[Any].  Pylance sees it just fine.
        return coercions.expect(roles.FromClauseRole, selectable).alias(  # type: ignore[no-any-return]  # noqa: E501
            name=name, flat=flat
        )


class TableValuedAlias(LateralFromClause, Alias):