@Nullable Integer expectedNodeCount = null;

  /**
   * Creates a new instance with the specified edge directionality.
   *
   * @param directed if true, creates an instance for graphs whose edges are each directed; if
   *     false, creates an instance for graphs whose edges are each undirected.
   */
  AbstractGraphBuilder(boolean directed) {
    this.directed = directed;
  }

     * @return this Ansi instance
     */
    public Ansi cursorToColumn(final int x) {
        return appendEscapeSequence('G', Math.max(1, x));
    }

    /**
     * Moves the cursor up. If the parameter y is negative it moves the cursor down.
     *
     * @param y the number of lines to move up
     * @return this Ansi instance
     */
    public Ansi cursorUp(final int y) {

        ProjectBuilderRequestBuilder() {}

        /**
         * Sets the Maven session for this request.
         *
         * @param session the Maven session
         * @return this builder instance
         */
        public ProjectBuilderRequestBuilder session(Session session) {
            this.session = session;
            return this;
        }

        /**

@Singleton
public final class BomLifecycleMappingProvider extends AbstractLifecycleMappingProvider {
    // START SNIPPET: bom
    private static final String[] BINDINGS = {
        "install", "org.apache.maven.plugins:maven-install-plugin:" + INSTALL_PLUGIN_VERSION + ":install",
        "deploy", "org.apache.maven.plugins:maven-deploy-plugin:" + DEPLOY_PLUGIN_VERSION + ":deploy"
    };
    // END SNIPPET: bom

    @Inject

    - name: Set up Python 3.9
      uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548 # v6.1.0
      with:
        python-version: "3.9"
    - name: Install Python dependencies
      run: |
        python -m pip install --upgrade pip
        pip install pylint==2.13.9 numpy wheel
    - name: Run PyLint on changed files
      run: |

Sie können die *Pfadoperationen* für dieses Modul mit `APIRouter` erstellen.

### `APIRouter` importieren { #import-apirouter }

Sie importieren ihn und erstellen eine „Instanz“ auf die gleiche Weise wie mit der Klasse `FastAPI`:

{* ../../docs_src/bigger_applications/app_an_py310/routers/users.py hl[1,3] title["app/routers/users.py"] *}

    assertEquals("correct", f.apply(new Object()));
    assertEquals("correct", f.apply(null));

    Function<@Nullable Object, @Nullable String> g = Functions.constant(null);
    assertThat(g.apply(2)).isNull();
    assertThat(g.apply(null)).isNull();

    new EqualsTester()
        .addEqualityGroup(f, Functions.constant("correct"))

---

## FastAPI'yi Kurun { #install-fastapi }

İlk adım FastAPI'yi kurmaktır.

Bir [sanal ortam](../virtual-environments.md) oluşturduğunuzdan emin olun, etkinleştirin ve ardından **FastAPI'yi kurun**:

<div class="termy">

```console
$ pip install "fastapi[standard]"

---> 100%
```

</div>

/// note | Not

## Classes as dependencies { #classes-as-dependencies_1 }

You might notice that to create an instance of a Python class, you use that same syntax.

For example:

```Python
class Cat:
    def __init__(self, name: str):
        self.name = name


fluffy = Cat(name="Mr Fluffy")
```

In this case, `fluffy` is an instance of the class `Cat`.

And to create `fluffy`, you are "calling" `Cat`.

            throws RepositoryMetadataDeploymentException;

    /**
     * Install the metadata in the local repository.
     *
     * @param metadata        the metadata
     * @param localRepository the local repository
     * @throws RepositoryMetadataInstallationException in case of metadata installation issue
     */
    void install(ArtifactMetadata metadata, ArtifactRepository localRepository)