///

```Python hl_lines="7"
{!> ../../docs_src/dependencies/tutorial011.py!}
```

////

In diesem Fall wird **FastAPI** `__init__` nie berühren oder sich darum kümmern, wir werden es direkt in unserem Code verwenden.

## Eine Instanz erstellen

Wir könnten eine Instanz dieser Klasse erstellen mit:

//// tab | Python 3.9+

```Python hl_lines="18"
{!> ../../docs_src/dependencies/tutorial011_an_py39.py!}
```

    private val response =
      Response.Builder()
        .request(Request("https://example.com/".toHttpUrl()))
        .protocol(Protocol.HTTP_1_1)
        .message("OK")
        .code(200)
        .body(
          object : ResponseBody() {
            override fun contentType() = null

            override fun contentLength() = -1L

            override fun source() =

    name: String,
    vararg values: String,
  ) = apply {
    assertThat(request.headers(name)).containsExactly(*values)
  }

  fun assertCode(expectedCode: Int) =
    apply {
      assertThat(response!!.code).isEqualTo(expectedCode)
    }

  fun assertSuccessful() =
    apply {
      assertThat(failure).isNull()
      assertThat(response!!.isSuccessful).isTrue()
    }

  fun assertNotSuccessful() =
    apply {

import java.util.EnumSet;
import java.util.List;
import java.util.Map.Entry;
import java.util.Set;
import junit.framework.TestSuite;

/**
 * Creates, based on your criteria, a JUnit test suite that exhaustively tests a {@code
 * ListMultimap} implementation.
 *
 * @author Louis Wasserman
 */
@GwtIncompatible
public class ListMultimapTestSuiteBuilder<K, V>
    extends MultimapTestSuiteBuilder<K, V, ListMultimap<K, V>> {

import com.google.common.collect.testing.features.MapFeature;
import java.util.Iterator;
import java.util.Map.Entry;
import org.junit.Ignore;

/**
 * Tester for {@code Multimap.entries}.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
@SuppressWarnings("JUnit4ClassUsedInJUnit3")

import java.lang.reflect.Method;
import java.util.ConcurrentModificationException;
import java.util.Iterator;
import org.junit.Ignore;

/**
 * A generic JUnit test which tests {@code add(int, Object)} operations on a list. Can't be invoked
 * directly; please see {@link com.google.common.collect.testing.ListTestSuiteBuilder}.
 *
 * @author Chris Povirk
 */
@GwtCompatible(emulated = true)

因此，我们下一步要做的就是添加代码，为从 API 接收回调的*外部 API*存档。

这部分文档在 `/docs` 下的 Swagger API 文档中显示，并且会告诉外部开发者如何构建*外部 API*。

本例没有实现回调本身（只是一行代码），只有文档部分。

/// tip | "提示"

实际的回调只是 HTTP 请求。

实现回调时，要使用 <a href="https://www.encode.io/httpx/" class="external-link" target="_blank">HTTPX</a> 或 <a href="https://requests.readthedocs.io/" class="external-link" target="_blank">Requests</a>。

///

## 编写回调文档代码

应用不执行这部分代码，只是用它来*记录 外部 API* 。

https://www.linkedin.com/in/mnrozhkov/ link: https://www.evidentlyai.com/blog/fastapi-tutorial title: ML serving and monitoring with FastAPI and Evidently - author: Visual Studio Code Team author_link: https://code.visualstudio.com/ link: https://code.visualstudio.com/docs/python/tutorial-fastapi title: FastAPI Tutorial in Visual Studio Code - author: Apitally author_link: https://apitally.io link: https://blog.apitally.io/fastapi-application-monitoring-made-easy title: FastAPI application monitoring made easy...

	reqBodyArg := madmin.UserInfo{
		SecretKey:  secretKey,
		PolicyName: "consoleAdmin",
		Status:     madmin.AccountEnabled,
	}
	buf, err := json.Marshal(reqBodyArg)
	if err != nil {
		c.Fatalf("unexpected json encode err: %v", err)
	}
	buf, err = madmin.EncryptData(secretKey, buf)
	if err != nil {
		c.Fatalf("unexpected encryption err: %v", err)
	}

	req.ContentLength = int64(len(buf))
	sum := sha256.Sum256(buf)

        for (final char c : url.toCharArray()) {
            if (CharUtil.isUrlChar(c)) {
                buf.append(c);
            } else {
                try {
                    buf.append(URLEncoder.encode(String.valueOf(c), enc));
                } catch (final UnsupportedEncodingException e) {
                    // NOP
                }
            }
        }
        return buf.toString();
    }