* <p>These features are all optional; {@code new MapMaker().makeMap()} returns a valid concurrent
 * map that behaves similarly to a {@link ConcurrentHashMap}.
 *
 * <p>The returned map is implemented as a hash table with similar performance characteristics to
 * {@link ConcurrentHashMap}. It supports all optional operations of the {@code ConcurrentMap}
 * interface. It does not permit null keys or values.
 *

---

FastAPI は、Python の標準である型ヒントに基づいて Python で API を構築するための、モダンで、高速（高パフォーマンス）な Web フレームワークです。

主な特徴:

* **高速**: **NodeJS** や **Go** 並みのとても高いパフォーマンス（Starlette と Pydantic のおかげです）。 [利用可能な最も高速な Python フレームワークの一つです](#performance)。
* **高速なコーディング**: 開発速度を約 200%〜300% 向上させます。*
* **少ないバグ**: 開発者起因のヒューマンエラーを約 40% 削減します。*
* **直感的**: 素晴らしいエディタサポート。<dfn title="別名: auto-complete、autocompletion、IntelliSense">補完</dfn> があらゆる場所で使えます。デバッグ時間を削減します。

    /**
     * Field location.
     */
    private InputLocation location;

    /**
     * Field importedFrom.
     */
    private InputLocation importedFrom;

    /**
     * Cached hashCode for performance.
     */
    private volatile int hashCode = 0;

    // ----------------/
    // - Constructors -/
    // ----------------/

    /**
     * Creates a new InputLocation from an API model InputLocation.

* Improve scheduler performance of MatchInterPodAffinity predicate. ([#57476](https://github.com/kubernetes/kubernetes/pull/57476), [@misterikkit](https://github.com/misterikkit))
* Improve scheduler performance of MatchInterPodAffinity predicate. ([#57477](https://github.com/kubernetes/kubernetes/pull/57477), [@misterikkit](https://github.com/misterikkit))

## Version 2.7.4

_2016-02-07_

 *  Fix: Don't crash when finding the trust manager if the Play Services (GMS)
    security provider is installed.
 *  Fix: The previous release introduced a performance regression on Android,
    caused by looking up CA certificates. This is now fixed.


## Version 2.7.3

_2016-02-06_

 *  Fix: Permit the trusted CA root to be pinned by `CertificatePinner`.

		if err != nil {
			return cfg, err
		}
		if inlineBlock > 128*humanize.KiByte {
			configLogOnceIf(context.Background(), fmt.Errorf("inline block value bigger than recommended max of 128KiB -> %s, performance may degrade for PUT please benchmark the changes", inlineBlockStr), inlineBlockStr)
		}
		cfg.inlineBlock = int64(inlineBlock)
	} else {
		cfg.inlineBlock = 128 * humanize.KiByte
	}

	cfg.initialized = true

          Function<? super T, ? extends V> valueFunction) {
    return CollectCollectors.toImmutableBiMap(keyFunction, valueFunction);
  }

  /**
   * Returns the empty bimap.
   *
   * <p><b>Performance note:</b> the instance returned is a singleton.
   */
  // Casting to any type is safe because the set will never hold any elements.
  @SuppressWarnings("unchecked")
  public static <K, V> ImmutableBiMap<K, V> of() {

 *   <li>It imposes requirements on the lifecycle of its subscribers. For example, if an event
 *       occurs between when one subscriber is removed and the next subscriber is added, the event
 *       is dropped.
 *   <li>Its performance is suboptimal, especially under Android.
 *   <li>It <a href="https://github.com/google/guava/issues/1431">doesn't support parameterized
 *       types</a>.

    return TableCollectors.toImmutableTable(
        rowFunction, columnFunction, valueFunction, mergeFunction);
  }

  /**
   * Returns an empty immutable table.
   *
   * <p><b>Performance note:</b> the instance returned is a singleton.
   */
  @SuppressWarnings("unchecked")
  public static <R, C, V> ImmutableTable<R, C, V> of() {
    return (ImmutableTable<R, C, V>) SparseImmutableTable.EMPTY;
  }

通过 **FastAPI** 你可以获得所有 **Starlette** 的特性（FastAPI 就像加强版的 Starlette）：

* 令人惊叹的性能。它是[Python 可用的最快的框架之一，和 **NodeJS** 及 **Go** 相当](https://github.com/encode/starlette#performance)。
* **支持 WebSocket**。
* 进程内后台任务。
* Startup 和 shutdown 事件。
* 测试客户端基于 HTTPX。
* **CORS**、GZip、静态文件、流响应。
* 支持 **Session 和 Cookie**。
* 100% 测试覆盖率。
* 代码库 100% 类型注释。