* `404`，用于**未找到**响应
    * 对于来自客户端的一般错误，可以只使用 `400`
* `500` 及以上的状态码用于表示服务器端错误。几乎永远不会直接使用这些状态码。应用代码或服务器出现问题时，会自动返回这些状态代码

/// tip | "提示"

状态码及适用场景的详情，请参阅 <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Status" class="external-link" target="_blank"><abbr title="Mozilla Developer Network">MDN 的 HTTP 状态码</abbr>文档</a>。

///

## 状态码名称快捷方式

再看下之前的例子：

```Python hl_lines="6"

   * suppression externally, but it's OK because we don't enforce test-size rules there.)
   *
   * We'd just use PackageSanityTests directly, saving us from needing this separate type, but we're
   * currently skipping MediumTests on Android, and we skip them by not making them present at
   * runtime at all. I could just make _this_ test a MediumTest, but then it wouldn't run on

Let's look at how we can make that work.

## pytest.mark.anyio

If we want to call asynchronous functions in our tests, our test functions have to be asynchronous. AnyIO provides a neat plugin for this, that allows us to specify that some test functions are to be called asynchronously.

## HTTPX

Even if your **FastAPI** application uses normal `def` functions instead of `async def`, it is still an `async` application underneath.

  }

  /**
   * Returns true if this connection's route has the same address as any of [candidates]. This
   * requires us to have a DNS address for both hosts, which only happens after route planning. We
   * can't coalesce connections that use a proxy, since proxies don't tell us the origin server's IP
   * address.
   */
  private fun routeMatchesAny(candidates: List<Route>): Boolean {
    return candidates.any {

    * 💊 ❌ ⚪️➡️ 👩‍💻, 👆 💪 ⚙️ `400`.
* `500` & 🔛 💽 ❌. 👆 🌖 🙅 ⚙️ 👫 🔗. 🕐❔ 🕳 🚶 ❌ 🍕 👆 🈸 📟, ⚖️ 💽, ⚫️ 🔜 🔁 📨 1️⃣ 👫 👔 📟.

/// tip

💭 🌅 🔃 🔠 👔 📟 &amp; ❔ 📟 ⚫️❔, ✅ <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Status" class="external-link" target="_blank"><abbr title="Mozilla Developer Network">🏇</abbr> 🧾 🔃 🇺🇸🔍 👔 📟</a>.

///

## ⌨ 💭 📛

➡️ 👀 ⏮️ 🖼 🔄:

```Python hl_lines="6"

versionId="$(./mc ls --json --versions myminio1/testbucket/dir/ | tail -n1 | jq -r .versionId)"

export AWS_ACCESS_KEY_ID=minioadmin
export AWS_SECRET_ACCESS_KEY=minioadmin
export AWS_REGION=us-east-1

aws s3api --endpoint-url http://localhost:9001 delete-object --bucket testbucket --key dir/file --version-id "$versionId"

./mc ls -r --versions myminio1/testbucket >/tmp/myminio1.txt

                if (ntlm == null) return;
            } else {
                String auth = new String(Base64.decode(msg.substring(6)),
                        "US-ASCII");
                int index = auth.indexOf(':');
                String user = (index != -1) ? auth.substring(0, index) : auth;
                String password = (index != -1) ? auth.substring(index + 1) :

            writer: DerWriter,
            value: String,
          ) = writer.writeUtf8(value)
        },
    )

  /**
   * Based on International Alphabet No. 5. Note that there are bytes that IA5 and US-ASCII
   * disagree on interpretation.
   *
   * TODO(jwilson): constrain to IA5 characters.
   */
  val IA5_STRING =
    BasicDerAdapter(
      name = "IA5 STRING",

func genTransitionObjName(bucket string) (string, error) {
	u, err := uuid.NewRandom()
	if err != nil {
		return "", err
	}
	us := u.String()
	hash := xxh3.HashString(pathJoin(globalDeploymentID(), bucket))
	obj := fmt.Sprintf("%s/%s/%s/%s", strconv.FormatUint(hash, 16), us[0:2], us[2:4], us)
	return obj, nil
}

// transition object to target specified by the transition ARN. When an object is transitioned to another

    SettableFuture<?> unused = SettableFuture.create();
    // Hack to load AbstractFuture et. al. in a new classloader so that it re-reads the cancellation
    // cause system property.  This allows us to run with both settings of the property in one jvm
    // without resorting to even crazier hacks to reset static final boolean fields.
    System.setProperty("guava.concurrent.generate_cancellation_cause", "true");