* Serialization: you could return an arbitrary object and the
                    `response_model` would be used to serialize that object into the
                    corresponding JSON.
                * Filtering: the JSON sent to the client will only contain the data
                    (fields) defined in the `response_model`. If you returned an object

    //                                                                              ======
    @Override
    public Map<String, Object> toSource() {
        Map<String, Object> sourceMap = new HashMap<>();
        if (businessCategory != null) {
            addFieldToSource(sourceMap, "businessCategory", businessCategory);
        }
        if (carLicense != null) {

        // which needs container initialization.
        // We can only test that the method can be called without crashing
        // when proper conditions are not met.

        Map<String, Object> docMap = new HashMap<>();

        // This will return false because getFessConfig() will fail
        // We verify the method handles the case gracefully
        try {
            emptyGenerator.isTarget(docMap);

@GwtCompatible
@NullMarked
final class ReflectionFreeAssertThrows {
  interface ThrowingRunnable {
    void run() throws Throwable;
  }

  interface ThrowingSupplier {
    @Nullable Object get() throws Throwable;
  }

  @CanIgnoreReturnValue
  static <T extends Throwable> T assertThrows(
      Class<T> expectedThrowable, ThrowingSupplier supplier) {

        short maxLength = 20;
        int pointer = 100;
        PacUnicodeString pacString = new PacUnicodeString(length, maxLength, pointer);

        // Verify that the object was created
        assertNotNull(pacString, "The PacUnicodeString object should not be null.");

        // Verify that the getters return the correct values

次の場所からデータを取得します:

- パスのパラメータ
- ヘッダー
- クッキー
- など

こうすることで、**FastAPI** はそのデータを検証し、変換し、API のドキュメントを自動生成します。

しかし、`Request` オブジェクトに直接アクセスする必要がある場面もあります。

## `Request` オブジェクトの詳細 { #details-about-the-request-object }

**FastAPI** は内部的には **Starlette** の上にいくつかのツール層を載せたものなので、必要に応じて Starlette の [`Request`](https://www.starlette.dev/requests/) オブジェクトを直接使えます。

                        "required": ["alias"],
                        "type": "object",
                        "properties": {"alias": {"title": "Alias", "type": "string"}},
                    },
                    "ModelNoAlias": {
                        "title": "ModelNoAlias",
                        "required": ["name"],
                        "type": "object",

// Copyright (c) 2015-2022 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful

from fastapi import FastAPI, Response

app = FastAPI()


@app.post("/cookie-and-object/")
def create_cookie(response: Response):
    response.set_cookie(key="fakesession", value="fake-cookie-session-value")

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

/**
 * Testers for {@link ListMultimap#remove(Object, Object)}.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")