Yeni özellikler sık sık eklenir, bug'lar düzenli olarak düzeltilir ve kod sürekli iyileştirilmektedir.

Bu yüzden mevcut sürümler hâlâ `0.x.x` şeklindedir; bu da her sürümde breaking change olma ihtimalini yansıtır. Bu yaklaşım [Anlamsal Sürümleme](https://semver.org/) kurallarını takip eder.

    /**
     * This type is syntactically identical to "multipart/mixed", but the semantics are different.
     * In particular, in a digest, the default `Content-Type` value for a body part is changed from
     * "text/plain" to "message/rfc822".
     */
    @JvmField
    val DIGEST = "multipart/digest".toMediaType()

    /**

... und dann zeigt die Swagger-Oberfläche die Syntaxhervorhebung nicht mehr an:

<img src="/img/tutorial/extending-openapi/image03.png">

## Das Theme ändern { #change-the-theme }

Auf die gleiche Weise könnten Sie das Theme der Syntaxhervorhebung mit dem Schlüssel `"syntaxHighlight.theme"` festlegen (beachten Sie, dass er einen Punkt in der Mitte hat):

  /**
   * Verify thread safety by using a collection whose size() may be inconsistent with the actual
   * number of elements and whose elements may change over time.
   *
   * <p>This test might fail in GWT because the GWT emulations might count on the input collection
   * not to change during the copy. It is safe to do so in GWT because javascript is
   * single-threaded.
   */
  @GwtIncompatible // GWT is single threaded

    }
    assertEvents("R0.00", "R1.00", "R1.00", "R1.00", "R1.00");
  }

  /**
   * Make sure that bursts can never go above 1-second-worth-of-work for the current rate, even when
   * we change the rate.
   */
  public void testWeNeverGetABurstMoreThanOneSec() {
    RateLimiter limiter = RateLimiter.create(1.0, stopwatch);
    int[] rates = {1000, 1, 10, 1000000, 10, 1};
    for (int rate : rates) {

    }
    assertEvents("R0.00", "R1.00", "R1.00", "R1.00", "R1.00");
  }

  /**
   * Make sure that bursts can never go above 1-second-worth-of-work for the current rate, even when
   * we change the rate.
   */
  public void testWeNeverGetABurstMoreThanOneSec() {
    RateLimiter limiter = RateLimiter.create(1.0, stopwatch);
    int[] rates = {1000, 1, 10, 1000000, 10, 1};
    for (int rate : rates) {

import java.util.function.Function;
import java.util.stream.Collector;
import java.util.stream.Collectors;
import org.jspecify.annotations.Nullable;

/**
 * A {@link BiMap} whose contents will never change, with many other important properties detailed
 * at {@link ImmutableCollection}.
 *
 * @author Jared Levy
 * @since 2.0
 */
@GwtCompatible

<img src="/img/tutorial/extending-openapi/image03.png">

## 更換主題 { #change-the-theme }

同樣地，你可以用鍵 `"syntaxHighlight.theme"` 設定語法醒目提示主題（注意中間有一個點）：

{* ../../docs_src/configure_swagger_ui/tutorial002_py310.py hl[3] *}

這個設定會變更語法醒目提示的配色主題：

<img src="/img/tutorial/extending-openapi/image04.png">

## 更改預設的 Swagger UI 參數 { #change-default-swagger-ui-parameters }

FastAPI 內建一些預設參數，適用於大多數情境。

包含以下預設設定：

...在此之后，Swagger UI 将不会高亮代码:

<img src="/img/tutorial/extending-openapi/image03.png">

## 改变主题 { #change-the-theme }

同样地，你也可以通过设置键 `"syntaxHighlight.theme"` 来设置语法高亮主题（注意中间有一个点）：

{* ../../docs_src/configure_swagger_ui/tutorial002_py310.py hl[3] *}

这个配置会改变语法高亮主题：

<img src="/img/tutorial/extending-openapi/image04.png">

## 改变默认 Swagger UI 参数 { #change-default-swagger-ui-parameters }

FastAPI 包含了一些默认配置参数，适用于大多数用例。

其包括这些默认配置参数：

     */
    Class<T> getType();

    /**
     * Creates a copy of the data suitable for storage in the cache. The original data to store can be mutated after the
     * cache is populated but the state of the cache must not change so we need to make a copy.
     *
     * @param data The data to store in the cache, must not be {@code null}.
     * @return The data being stored in the cache, never {@code null}.
     */
    T intoCache(T data);