/**
     * Builds the effective toolchains for the specified toolchains sources.
     *
     * @param session the {@link Session}, must not be {@code null}
     * @param installationToolchainsFile The {@link Source} pointing to the installation toolchains, must not be {@code null}
     * @param userToolchainsSource The {@link Source} pointing to the user toolchains, must not be {@code null}

  }

  /**
   * Wrapper for {@link Map#get(Object)} that forces the caller to pass in a key of the same type as
   * the map. Besides being slightly shorter than code that uses {@link #getMap()}, it also ensures
   * that callers don't pass an {@link Entry} by mistake.
   */
  protected V get(K key) {
    return getMap().get(key);
  }

`TestClient`는 <a href="https://www.python-httpx.org" class="external-link" target="_blank">HTTPX</a>를 기반으로 하고 있으며, 다행히 이를 직접 사용하여 API를 테스트할 수 있습니다.

## 예시

간단한 예시를 위해 [더 큰 어플리케이션 만들기](../ko/tutorial/bigger-applications.md){.internal-link target=_blank} 와 [테스트](../ko/tutorial/testing.md){.internal-link target=_blank}:에서 다룬 파일 구조와 비슷한 형태를 확인해봅시다:

```
.
├── app
│   ├── __init__.py
│   ├── main.py

/// tip

The actual callback is just an HTTP request.

When implementing the callback yourself, you could use something like <a href="https://www.python-httpx.org" class="external-link" target="_blank">HTTPX</a> or <a href="https://requests.readthedocs.io/" class="external-link" target="_blank">Requests</a>.

///

## Write the callback documentation code { #write-the-callback-documentation-code }

O callback real é apenas uma solicitação HTTP.

Quando implementando o callback por você mesmo, você pode usar algo como <a href="https://www.python-httpx.org" class="external-link" target="_blank">HTTPX</a> ou <a href="https://requests.readthedocs.io/" class="external-link" target="_blank">Requisições</a>.

///

## Escrevendo o código de documentação do callback

}

// InlineData returns whether inline data has been set.
// Note that false does not mean there is no inline data,
// only that it is unlikely.
func (j xlMetaV2Object) InlineData() bool {
	_, ok := j.MetaSys[ReservedMetadataPrefixLower+"inline-data"]
	return ok
}

func (j *xlMetaV2Object) ResetInlineData() {
	delete(j.MetaSys, ReservedMetadataPrefixLower+"inline-data")
}

const (

/**
 * GWT emulated version of {@link com.google.common.collect.ImmutableSet}. For the unsorted sets,
 * they are thin wrapper around {@link java.util.Collections#emptySet()}, {@link
 * Collections#singleton(Object)} and {@link java.util.LinkedHashSet} for empty, singleton and
 * regular sets respectively. For the sorted sets, it's a thin wrapper around {@link
 * java.util.TreeSet}.
 *
 * @see ImmutableSortedSet

## さらなる機能

[チュートリアル - ユーザーガイド](../tutorial/index.md){.internal-link target=_blank}により、**FastAPI**の主要な機能は十分に理解できたことでしょう。

以降のセクションでは、チュートリアルでは説明しきれなかったオプションや設定、および機能について説明します。

/// tip | 豆知識

以降のセクションは、 **必ずしも"応用編"ではありません**。

ユースケースによっては、その中から解決策を見つけられるかもしれません。

///

## 先にチュートリアルを読む

[チュートリアル - ユーザーガイド](../tutorial/index.md){.internal-link target=_blank}の知識があれば、**FastAPI**の主要な機能を利用することができます。

///

## Use cases { #use-cases }

Some use cases include:

* Converting non-JSON request bodies to JSON (e.g. <a href="https://msgpack.org/index.html" class="external-link" target="_blank">`msgpack`</a>).
* Decompressing gzip-compressed request bodies.
* Automatically logging all request bodies.

## Handling custom request body encodings { #handling-custom-request-body-encodings }

  left: 20px;
  z-index: 3001;
  display: none;
  font-family: arial;
  font-size: 15px;
  line-height: 1em;
}

.daterangepicker:before, .daterangepicker:after {
  position: absolute;
  display: inline-block;
  border-bottom-color: rgba(0, 0, 0, 0.2);
  content: '';
}

.daterangepicker:before {
  top: -7px;
  border-right: 7px solid transparent;
  border-left: 7px solid transparent;