因此，你可以像在 Python 程式中一樣使用 `user_agent`，不需要把首字母大寫成 `User_Agent` 或類似寫法。

若因某些原因需要停用底線自動轉連字號的行為，將 `Header` 的 `convert_underscores` 參數設為 `False`：

{* ../../docs_src/header_params/tutorial002_an_py310.py hl[10] *}

/// warning | 警告

在將 `convert_underscores` 設為 `False` 之前，請注意有些 HTTP 代理與伺服器不允許使用帶有底線的標頭。

///

## 重複的標頭 { #duplicate-headers }

有時可能會收到重複的標頭，也就是同一個標頭會有多個值。

可以在型別宣告中使用 list 來定義這種情況。

      return true;
    }
    if (!(object instanceof ImmutableLongArray)) {
      return false;
    }
    ImmutableLongArray that = (ImmutableLongArray) object;
    if (this.length() != that.length()) {
      return false;
    }
    for (int i = 0; i < length(); i++) {
      if (this.get(i) != that.get(i)) {
        return false;
      }
    }
    return true;
  }

        }

        @Override
        public boolean isIgnoreClassName(String className) {
            return false;
        }

        @Override
        public boolean isHotdeployTargetClassName(String className) {
            return false;
        }

        @Override
        public boolean isTargetClassName(String className) {
            return true;
        }

    description: "Testing of the Elasticsearch %BRANCH% branch platform support tests.\n"
    project-type: multijob
    node: master
    vault: []
    scm:
      - git:
          wipe-workspace: false
    builders:
      - multijob:
          name: Packaging tests
          projects:
            - name: elastic+elasticsearch+%BRANCH%+multijob+platform-support-darwin
              kill-phase-on: NEVER

from fastapi import FastAPI, Header

app = FastAPI()


@app.get("/items/")
async def read_items(
    strange_header: str | None = Header(default=None, convert_underscores=False),
):

      },
      "status": {
        "type": "keyword"
      },
      "targetInstanceId": {
        "type": "keyword"
      },
      "data": {
        "type": "text",
        "index": false
      },
      "createdTime": {
        "type": "long"
      },
      "expiredTime": {
        "type": "long"
      }
    }

  daemon: Boolean,
): ThreadFactory =
  ThreadFactory { runnable ->
    Thread(runnable, name).apply {
      isDaemon = daemon
    }
  }

internal fun HttpUrl.toHostHeader(includeDefaultPort: Boolean = false): String {
  val host =
    if (":" in host) {
      "[$host]"
    } else {
      host
    }
  return if (includeDefaultPort || port != defaultPort(scheme)) {
    "$host:$port"
  } else {
    host
  }

  val isOptional: Boolean = false,
  /** The value to return if this value is absent. Undefined unless this is optional. */
  val defaultValue: T? = null,
  /** True to set the encoded or decoded value as the type hint for the current SEQUENCE. */
  private val typeHint: Boolean = false,
) : DerAdapter<T> {
  init {
    require(tagClass >= 0)
    require(tag >= 0)
  }

        final ServerInfo1[] results = new ServerInfo1[getNumEntries()];
        for (int i = 0; i < getNumEntries(); i++) {
            results[i] = e = new ServerInfo1();
            e.name = readString(buffer, bufferIndex, 16, false);
            bufferIndex += 16;
            e.versionMajor = buffer[bufferIndex] & 0xFF;
            bufferIndex++;
            e.versionMinor = buffer[bufferIndex++] & 0xFF;

	if err != nil {
		return nil, err
	}

	defer xhttp.DrainBody(resp.Body)
	if resp.StatusCode != http.StatusOK {
		// uncomment this for debugging when needed.
		// reqBytes, _ := httputil.DumpRequest(req, false)
		// fmt.Println(string(reqBytes))
		// respBytes, _ := httputil.DumpResponse(resp, true)
		// fmt.Println(string(respBytes))
		return nil, errors.New(resp.Status)
	}

	claims := map[string]any{}