Method _factory

lib/sqlalchemy/sql/selectable.py:1832–1840

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

    @classmethod
    def _factory(
        cls,
        selectable: FromClause,
        name: Optional[str] = None,
        flat: bool = False,
    ) -> NamedFromClause:
        return coercions.expect(
            roles.FromClauseRole, selectable, allow_select=True
        ).alias(name=name, flat=flat)


class TableValuedAlias(LateralFromClause, Alias):