* {@link ClosingFuture} pipeline.
 */
@NullUnmarked
@GwtIncompatible
@J2ktIncompatible
public abstract class AbstractClosingFutureTest extends TestCase {
  // TODO(dpb): Use Expect once that supports JUnit 3, or we can use JUnit 4.
  final List<AssertionError> failures = new ArrayList<>();
  final StandardSubjectBuilder expect =
      StandardSubjectBuilder.forCustomFailureStrategy(
          new FailureStrategy() {
            @Override

```

そのため、`Query` を使いながら値を必須として宣言したい場合は、単にデフォルト値を宣言しません:

{* ../../docs_src/query_params_str_validations/tutorial006_an_py310.py hl[9] *}

### 必須、`None` にできる { #required-can-be-none }

パラメータが `None` を受け付けるが、それでも必須である、と宣言できます。これにより、値が `None` であってもクライアントは値を送らなければならなくなります。

そのために、`None` が有効な型であることを宣言しつつ、単にデフォルト値を宣言しません:

// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful

// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package bytes_test

import (
	. "bytes"
	"fmt"
	"internal/asan"
	"internal/testenv"
	"iter"
	"math"
	"math/rand"
	"slices"
	"strings"
	"testing"
	"unicode"
	"unicode/utf8"
	"unsafe"
)

func sliceOfString(s [][]byte) []string {

    /*
     * The test requires:
     *
     * 1) An interface I extending Comparable<I> so that the created array is of
     * an interface type. 2) An instance of a class implementing that interface
     * so that we can pass non-null instances of the interface.
     *
     * (Currently it's safe to pass instances for which compareTo() always
     * returns 0, but if we had a SingletonImmutableSortedSet, this might no

// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful

// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful

    @Override
    public @Nullable Object[] toArray() {
      synchronized (mutex) {
        /*
         * toArrayImpl returns `@Nullable Object[]` rather than `Object[]` but only because it can
         * be used with collections that may contain null. This collection never contains nulls, so
         * we could return `Object[]`. But this class is private and J2KT cannot change return types

    @Override
    public @Nullable Object[] toArray() {
      synchronized (mutex) {
        /*
         * toArrayImpl returns `@Nullable Object[]` rather than `Object[]` but only because it can
         * be used with collections that may contain null. This collection never contains nulls, so
         * we could return `Object[]`. But this class is private and J2KT cannot change return types

	data int64
}

func (t *DoubleInt64) Scan(val interface{}) error {
	switch v := val.(type) {
	case int64:
		t.data = v * 2
		return nil
	default:
		return fmt.Errorf("DoubleInt64 cant not scan with:%v", v)
	}
}

// https://github.com/go-gorm/gorm/issues/5091
func TestQueryScannerWithSingleColumn(t *testing.T) {
	user := User{Name: "scanner_raw_1", Age: 10}
	DB.Create(&user)