*     instance and contains no mappings
   */
  public static <K extends Enum<K>, V extends @Nullable Object> EnumHashBiMap<K, V> create(
      Map<K, ? extends V> map) {
    EnumHashBiMap<K, V> bimap = create(EnumBiMap.inferKeyTypeOrObjectUnderJ2cl(map));
    bimap.putAll(map);
    return bimap;
  }

  private EnumHashBiMap(Class<K> keyType) {

    private Authentication authentication;

    private Proxy proxy;

    private List<ArtifactRepository> mirroredRepositories = Collections.emptyList();

    private boolean blocked;

    /**
     * Create a local repository or a test repository.
     *
     * @param id     the unique identifier of the repository
     * @param url    the URL of the repository
     * @param layout the layout of the repository
     */

<div class="termy">

```console
$ pip install sqlmodel
---> 100%
```

</div>

## 単一モデルでアプリ作成 { #create-the-app-with-a-single-model }

まずは最も簡単な、単一の SQLModel モデルだけを使うバージョンを作ります。

後で、下記のとおり複数モデルにしてセキュリティと汎用性を高めます。🤓

### モデルの作成 { #create-models }

`SQLModel` をインポートしてデータベースモデルを作成します:

{* ../../docs_src/sql_databases/tutorial001_an_py310.py ln[1:11] hl[7:11] *}

<div class="termy">

```console
$ pip install sqlmodel
---> 100%
```

</div>

## 단일 모델로 애플리케이션 생성하기 { #create-the-app-with-a-single-model }

우선 단일 **SQLModel** 모델을 사용하여 애플리케이션의 가장 간단한 첫 번째 버전을 생성해보겠습니다.

이후 아래에서 **여러 모델**로 보안과 유연성을 강화하며 개선하겠습니다. 🤓

### 모델 생성하기 { #create-models }

`SQLModel`을 가져오고 데이터베이스 모델을 생성합니다:

{* ../../docs_src/sql_databases/tutorial001_an_py310.py ln[1:11] hl[7:11] *}

    private final String scriptType;

    /**
     * Default constructor that creates a DocBoostMatcher with default script type.
     * Uses the default script engine as defined in Constants.DEFAULT_SCRIPT.
     */
    public DocBoostMatcher() {
        scriptType = Constants.DEFAULT_SCRIPT;
    }

    /**
     * Constructor that creates a DocBoostMatcher from a BoostDocumentRule.
     *

     */
    byte[] getServerEncryptionKey();

    /**
     * Gets or creates an SMB session for the given context.
     *
     * @param ctx the CIFS context
     * @return session
     */
    SmbSession getSmbSession(CIFSContext ctx);

    /**
     * Gets or creates an SMB session for the specified target.
     *
     * @param tf the CIFS context

    private List<WitnessNotificationResponse> notifications;

    /**
     * Creates a new WitnessAsyncNotify RPC message.
     */
    public WitnessAsyncNotifyMessage() {
        super(WITNESS_ASYNC_NOTIFY);
        this.contextHandle = new byte[20];
        this.notifications = new ArrayList<>();
    }

    /**
     * Creates a new WitnessAsyncNotify RPC message with the specified context handle.
     *

        Provider<File> checkoutDir = versionInfoProvider.map(info -> new File(project.getBuildDir(), "bwc/checkout-" + info.branch));
        BwcSetupExtension bwcSetupExtension = project.getExtensions()
            .create("bwcSetup", BwcSetupExtension.class, project, versionInfoProvider, bwcTaskThrottleProvider, checkoutDir);
        BwcGitExtension gitExtension = project.getPlugins().apply(InternalBwcGitPlugin.class).getGitExtension();

    @Test
    void testList_ok() {
        checkGetMethod(Collections.emptyMap(), getListEndpointSuffix() + "/").then().body("response.status", equalTo(0));
    }

    @Test
    void testUpload_ok() {
        // Create a test file content
        String fileContent = "Test file content for storage upload";

        // Upload file
        Response response = given().header("Authorization", getTestToken())

  public void testEquals_containingNullKey() {
    Collection<Entry<K, V>> entries = getSampleEntries(getNumEntries() - 1);
    entries.add(entry(null, v3()));

    resetContainer(getSubjectGenerator().create(entries.toArray()));
    assertTrue(
        "A Map should equal any other Map containing the same entries,"
            + " even if some keys are null.",
        getMap().equals(newHashMap(entries)));
  }