Method _create_union_all

lib/sqlalchemy/sql/selectable.py:4701–4704

(
        cls, *selects: _SelectStatementForCompoundArgument[Unpack[_Ts]]
    )

    @classmethod
    def _create_union_all(
        cls, *selects: _SelectStatementForCompoundArgument[Unpack[_Ts]]
    ) -> CompoundSelect[Unpack[_Ts]]:
        return CompoundSelect(_CompoundSelectKeyword.UNION_ALL, *selects)

    @classmethod
    def _create_except(