Method _create_union

lib/sqlalchemy/sql/selectable.py:4573–4576

(
        cls, *selects: _SelectStatementForCompoundArgument[_TP]
    )

    @classmethod
    def _create_union(
        cls, *selects: _SelectStatementForCompoundArgument[_TP]
    ) -> CompoundSelect[_TP]:
        return CompoundSelect(_CompoundSelectKeyword.UNION, *selects)

    @classmethod
    def _create_union_all(