}
    ```

 *  New: Support request bodies on HTTP/1.1 connection upgrades.
 *  New: `EventListener.plus()` makes it easier to observe events in multiple listeners.
 *  Fix: Don't spam logs with _‘Method isLoggable in android.util.Log not mocked.’_ when using
    OkHttp in Robolectric and Paparazzi tests.
 *  Upgrade: [Kotlin 2.2.21][kotlin_2_2_21].
 *  Upgrade: [Okio 3.16.2][okio_3_16_2].

///

## 覆寫預設行為 { #overriding-the-defaults }

基於上述資訊，你可以用相同的工具函式來產生 OpenAPI 結構，並覆寫你需要客製的部分。

例如，我們要加入 [ReDoc 的 OpenAPI 擴充，插入自訂 logo](https://github.com/Rebilly/ReDoc/blob/master/docs/redoc-vendor-extensions.md#x-logo)。

### 一般的 **FastAPI** { #normal-fastapi }

先照常撰寫你的 **FastAPI** 應用：

{* ../../docs_src/extending_openapi/tutorial001_py310.py hl[1,4,7:9] *}

           * we catch everything. (Any Exception is either a RuntimeException or
           * sneaky checked exception.) With no better options, we log anything to the same
           * place as Closeables logs.
           */
          Closeables.logger.log(
              Level.WARNING, "Suppressing exception thrown when closing " + closeable, suppressed);
        }
      };

     *
     * The key idea is that based on the number of leading zeros (equivalently, floor(log2(x))), we
     * can narrow the possible floor(log10(x)) values to two. For example, if floor(log2(x)) is 6,
     * then 64 <= x < 128, so floor(log10(x)) is either 1 or 2.
     */
    int y = maxLog10ForLeadingZeros[Integer.numberOfLeadingZeros(x)];
    /*

    return result;
  }

  /**
   * Generates a number in [0, 2^numBits) with an exponential distribution. The floor of the log2 of
   * the result is chosen uniformly at random in [0, numBits), and then the result is chosen in that
   * range uniformly at random. Zero is treated as having log2 == 0.
   */
  static BigInteger randomNonNegativeBigInteger(int numBits) {
    int digits = RANDOM_SOURCE.nextInt(numBits);

    description: High Performance Object Storage
    digest: 25fa2740480d1ebc9e64340854a6c42d3a7bc39c2a77378da91b21f144faa9af
    home: https://min.io
    icon: https://min.io/resources/img/logo/MINIO_wordmark.png
    keywords:
    - minio
    - storage
    - object-storage
    - s3
    - cluster
    maintainers:
    - email: ******@****.***
      name: MinIO, Inc
    name: minio
    sources:

            }
        }

        // at this point logging is set up, reply so far accumulated logs, if any and swap logger with real one
        Logger logger =
                new Slf4jLogger(context.loggerFactory.getLogger(getClass().getName()));
        context.logger.drain().forEach(e -> logger.log(e.level(), e.message(), e.error()));
        context.logger = logger;
    }

    }
  }

  // Relies on the correctness of log2(BigInteger, {HALF_UP,HALF_DOWN}).
  public void testLog2HalfEven() {
    for (BigInteger x : POSITIVE_BIGINTEGER_CANDIDATES) {
      int halfEven = BigIntegerMath.log2(x, HALF_EVEN);
      // Now figure out what rounding mode we should behave like (it depends if FLOOR was
      // odd/even).
      boolean floorWasEven = (BigIntegerMath.log2(x, FLOOR) & 1) == 0;

    redQueue.schedule("task", 100.µs) {
      log += "run@${taskFaker.nanoTime}"
      return@schedule delays.removeAt(0)
    }

    taskFaker.advanceUntil(0.µs)
    assertThat(log).containsExactly()

    taskFaker.advanceUntil(100.µs)
    assertThat(log).containsExactly("run@100000")

    taskFaker.advanceUntil(150.µs)
    assertThat(log).containsExactly("run@100000", "run@150000")

## Version 4.9.1

_2021-01-30_

 *  Fix: Work around a crash in Android 10 and 11 that may be triggered when two threads
    concurrently close an SSL socket. This would have appeared in crash logs as
    `NullPointerException: bio == null`.


## Version 4.9.0

_2020-09-11_

**With this release, `okhttp-tls` no longer depends on Bouncy Castle and doesn't install the