Variant().Tuple() about ydb-go-sdk HOT 2 CLOSED

params := ydb.ParamsBuilder().Param("$param").BeginVariant().Tuple().Types().Bool().Int64().Index(0).Bool(true).EndTuple().EndVariant().Build()

err := db.Table().Do(ctx, func(ctx, s) error) {
    res, tx, err := s.Execute(ctx, txControl, `
        -- DECLARE $param AS Variant<Bool,Int64>;
        SELECT $param;
    `, params)
    . . .
})