* before {@link Builder#build} is called, the builder is likely to perform better than an unsized
   * {@link #builder()} would have.
   *
   * <p>It is not specified if any performance benefits apply if {@code expectedSize} is close to,
   * but not exactly, the number of distinct elements added to the builder.
   *
   * @since 23.1
   */
  public static <E> Builder<E> builderWithExpectedSize(int expectedSize) {

MinIO server expects environment variable for etcd as `MINIO_ETCD_ENDPOINTS`, this environment variable takes many comma separated entries.

```
export MINIO_ETCD_ENDPOINTS=http://localhost:2379
minio server /data
```

  done
fi

if [[ "$TFCI_ARTIFACT_STAGING_GCS_ENABLE" == 1 ]]; then
  # Note: -n disables overwriting previously created files.
  # TODO(b/389744576): Remove when gsutil is made to work properly on MSYS2.
  if [[ $(uname -s) != MSYS_NT* ]]; then

# This generates a pure python wheel of the format "*-py3-none-any.whl"
bazel run --HERMETIC_PYTHON_VERSION=3.13 //tensorflow/tools/pip_package:setup_py_binary -- bdist_wheel --dist-dir "$TFCI_OUTPUT_DIR"

# Get the name of the pure python wheel that was built. This should
# resolve to either
# 1. tensorflow-a.b.c-py3-none-any.whl  or, for nightly builds,
# 2. tf_nightly-a.b.c.devYYYYMMDD-py3-none-any.whl

由于这种情况下（不使用 `Annotated`）我们必须把函数中的默认值 `None` 替换为 `Query()`，因此需要通过参数 `Query(default=None)` 来设置默认值，它起到同样的作用（至少对 FastAPI 来说）。

所以：

```Python
q: str | None = Query(default=None)
```

...会让参数变成可选，默认值为 `None`，等同于：

```Python
q: str | None = None
```

但使用 `Query` 的版本会显式把它声明为一个查询参数。

然后，我们可以向 `Query` 传入更多参数。本例中是适用于字符串的 `max_length` 参数：

   * known not to trigger content sniffing in current browsers</a>. It <i>should not</i> be used in
   * other situations as it is not specified by any RFC and does not appear in the <a
   * href="http://www.iana.org/assignments/media-types">/IANA MIME Media Types</a> list. Consider
   * {@link #OCTET_STREAM} for binary data that is not being served to a browser.
   *
   * @since 14.0
   */

        // Initialize without container
        emptyGenerator = new EmptyGenerator();

        // Note: isTarget method requires FessConfig from ComponentUtil
        // which needs container initialization.
        // We can only test that the method can be called without crashing
        // when proper conditions are not met.

        Map<String, Object> docMap = new HashMap<>();

/**
 * An implementation of {@link DataOutput} that uses little-endian byte ordering for writing {@code
 * char}, {@code short}, {@code int}, {@code float}, {@code double}, and {@code long} values.
 *
 * <p><b>Note:</b> This class intentionally violates the specification of its supertype {@code
 * DataOutput}, which explicitly requires big-endian byte order.
 *
 * @author Chris Nokleberg
 * @author Keith Bottner
 * @since 8.0
 */

이 메서드는 함수를 반환합니다. 그리고 그 함수가 요청을 받아 응답을 반환합니다.

여기서는 원본 요청으로부터 `GzipRequest`를 만들기 위해 이를 사용합니다.

{* ../../docs_src/custom_request_and_route/tutorial001_an_py310.py hl[19:27] *}

/// note | 기술 세부사항

`Request`에는 `request.scope` 속성이 있는데, 이는 요청과 관련된 메타데이터를 담고 있는 Python `dict`입니다.

`Request`에는 또한 `request.receive`가 있는데, 이는 요청의 바디를 "받기(receive)" 위한 함수입니다.

`scope` `dict`와 `receive` 함수는 모두 ASGI 명세의 일부입니다.

## モデルの属性の宣言 { #declare-model-attributes }

以下のように`Field`をモデルの属性として使用することができます:

{* ../../docs_src/body_fields/tutorial001_an_py310.py hl[11:14] *}

`Field`は`Query`や`Path`、`Body`と同じように動作し、全く同様のパラメータなどを持ちます。

/// note | 技術詳細

実際には次に見る`Query`や`Path`などは、共通の`Param`クラスのサブクラスのオブジェクトを作成しますが、それ自体はPydanticの`FieldInfo`クラスのサブクラスです。

また、Pydanticの`Field`は`FieldInfo`のインスタンスも返します。