@SafeVarargs
  public static <T extends @Nullable Object> Stream<T> concat(Stream<? extends T>... streams) {
    // TODO(lowasser): consider an implementation that can support SUBSIZED
    boolean isParallel = false;
    int characteristics = Spliterator.ORDERED | Spliterator.SIZED | Spliterator.NONNULL;
    long estimatedSize = 0L;

```Python
        ... "item_name": item.name ...
```

...以下のように:

```Python
        ... "item_price": item.price ...
```

...そして、エディタが属性を自動補完し、そのタイプを知る方法を確認してください。:

![editor support](https://fastapi.tiangolo.com/img/vscode-completion.png)

より多くの機能を含む、より完全な例については、<a href="https://fastapi.tiangolo.com/tutorial/">チュートリアル - ユーザーガイド</a>をご覧ください。

**ネタバレ注意**: チュートリアル - ユーザーガイドは以下の情報が含まれています:

# Dependências com yield

O FastAPI possui suporte para dependências que realizam <abbr title='também chamados de "código de saída", "código de cleanup", "código de teardown", "código de finalização", "código de saída para gerenciador de contextos", etc.'>alguns passos extras ao finalizar</abbr>.

Para fazer isso, utilize `yield` em vez de `return`, e escreva os passos extras (código) depois.

/// tip | "Dica"

Garanta que `yield` é utilizado apenas uma vez.

// Copyright 2015 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 arch defines architecture-specific information and support functions.
package arch

import (
	"cmd/internal/obj"
	"cmd/internal/obj/arm"
	"cmd/internal/obj/arm64"
	"cmd/internal/obj/loong64"
	"cmd/internal/obj/mips"
	"cmd/internal/obj/ppc64"
	"cmd/internal/obj/riscv"

.PHONY: binaries-test
binaries-test:
	go test ${GOBUILDFLAGS} ./tests/binary/... -v --base-dir ${TARGET_OUT} --binaries="$(RELEASE_SIZE_TEST_BINARIES)"

# istioctl-all makes all of the non-static istioctl executables for each supported OS
.PHONY: istioctl-all
istioctl-all: ${TARGET_OUT}/release/istioctl-linux-amd64 ${TARGET_OUT}/release/istioctl-linux-armv7 ${TARGET_OUT}/release/istioctl-linux-arm64 \
	${TARGET_OUT}/release/istioctl-osx \

 * static factory method. Neither are semantics of mutation methods such as {@code
 * someList.add(obj)} checked. For more detailed discussion of supported and unsupported cases, see
 * {@link #testEquals}, {@link #testNulls} and {@link #testSerializable}.
 *
 * <p>For testing against the returned instances from a static factory class, such as
 *
 * <pre>

losses), even if such Contributor has been advised of the possibility of such damages. 9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and...

    if (!CommonPattern.isPcreLike()) {
      return;
    }
    assertSplitterIterableIsLazy(Splitter.onPattern(","));
  }

  /**
   * This test really pushes the boundaries of what we support. In general the splitter's behaviour
   * is not well defined if the char sequence it's splitting is mutated during iteration.
   */
  private void assertSplitterIterableIsLazy(Splitter splitter) {

		return nil
	}

	if cancel := r.cancel; cancel != nil {
		// cancel != nil only on pool leaders
		r.cancel = nil
		cancel()
	}
	return nil
}

// for rebalance trace support
type rebalanceMetrics struct{}

var globalRebalanceMetrics rebalanceMetrics

//go:generate stringer -type=rebalanceMetric -trimprefix=rebalanceMetric $GOFILE
type rebalanceMetric uint8

const (

          ? NullnessAnnotationReader.FROM_DECLARATION_AND_TYPE_USE_ANNOTATIONS
          : NullnessAnnotationReader.FROM_DECLARATION_ANNOTATIONS_ONLY;

  /**
   * Looks for declaration nullness annotations and, if supported, type-use nullness annotations.
   *
   * <p>Under Android VMs, the methods for retrieving type-use annotations don't exist. This means