*  Fix: Improve caching of private responses.
 *  Fix: Update cache-by-default response codes.
 *  Fix: Reused `Request.Builder` instances no longer hold stale URL fields.
 *  New: ConnectionSpec can now be configured to use the SSL socket's default
    cipher suites. To use, set the cipher suites to `null`.
 *  New: Support `DELETE` with a request body.

**Spoiler alert**: the tutorial - user guide includes:

* Declaration of **parameters** from other different places as: **headers**, **cookies**, **form fields** and **files**.
* How to set **validation constraints** as `maximum_length` or `regex`.

若想看包含更多功能的完整範例，請參考 <a href="https://fastapi.tiangolo.com/zh-hant/tutorial/">Tutorial - User Guide</a>。

**劇透警告**：教學 - 使用者指南包含：

* 來自不同來源的**參數**宣告：例如 **headers**、**cookies**、**form fields** 和 **files**。
* 如何設定**驗證限制**，如 `maximum_length` 或 `regex`。
* 一個非常強大且易用的 **<dfn title="也稱為：components、resources、providers、services、injectables">依賴注入</dfn>** 系統。
* 安全與驗證，包含支援 **OAuth2** 搭配 **JWT tokens** 與 **HTTP Basic** 驗證。

**Spoiler alert**: the tutorial - user guide includes:

* Declaration of **parameters** from other different places as: **headers**, **cookies**, **form fields** and **files**.
* How to set **validation constraints** as `maximum_length` or `regex`.

* `response_model_exclude_none=True`

如 [Pydantic 文件](https://docs.pydantic.dev/1.10/usage/exporting_models/#modeldict)中對 `exclude_defaults` 與 `exclude_none` 的說明。

///

#### 對於有預設值欄位也有實際值的資料 { #data-with-values-for-fields-with-defaults }

但如果你的資料在模型中對於有預設值的欄位也有實際值，例如 ID 為 `bar` 的項目：

```Python hl_lines="3  5"
{
    "name": "Bar",
    "description": "The bartenders",
    "price": 62,
    "tax": 20.2
}
```

      if (builder.client) {
        set(Settings.INITIAL_WINDOW_SIZE, OKHTTP_CLIENT_WINDOW_SIZE)
      }
    }

  /**
   * Settings we receive from the peer. Changes to the field are guarded by this. The instance is
   * never mutated once it has been assigned.
   */
  var peerSettings = DEFAULT_SETTINGS

  /** The bytes consumed and acknowledged by the application. */

			continue
		}

		// In accordance with https://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectPOST.html
		// The file or text content.
		// The file or text content must be the last field in the form.
		// You cannot upload more than one file at a time.
		reader = part

		possibleShardSize := (r.ContentLength - headerLen)

  public ImmutableSortedMap<K, V> descendingMap() {
    // TODO(kevinb): The descendingMap is never actually cached at all. Either:
    //
    // - Cache it, and annotate the field with @LazyInit.
    // - Simplify the code below, and consider eliminating the field (b/287198172), which is also
    //   set by one of the constructors.
    ImmutableSortedMap<K, V> result = descendingMap;
    if (result == null) {
      if (isEmpty()) {

TF_CAPI_EXPORT extern bool TFE_IsCustomDevice(TFE_Context* ctx,
                                              const char* device_name);

// Struct to be filled in to define a custom device tensor handle. Fields are
// required except where indicated.
typedef struct TFE_CustomDeviceTensorHandleMethods {
  int version = TFE_CUSTOM_DEVICE_VERSION;

  // Computes the rank of the tensor handle.
  //

        "protocols doesn't contain http/1.1: $protocolList"
      }
      require(null !in protocolList as List<Protocol?>) { "protocols must not contain null" }
      field = protocolList
    }

  public val started: Boolean
    get() = socketAddress_ != null

  /**
   * Returns a URL for connecting to this server.
   *
   * @param path the request path, such as "/".