@Nonnull
    default DependencyResolverResult flatten(
            @Nonnull Session session, @Nonnull Project project, @Nonnull PathScope scope) {
        return flatten(DependencyResolverRequest.build(
                session, DependencyResolverRequest.RequestType.FLATTEN, project, scope));
    }

    @Nonnull

    assertThat(graph.edgeValueOrDefault(1, 2, DEFAULT)).isEqualTo("valueA");
    assertThat(graph.edgeValueOrDefault(2, 1, DEFAULT)).isEqualTo("valueB");
    assertThat(graph.edgeValueOrDefault(2, 3, DEFAULT)).isEqualTo("valueC");
    assertThat(graph.edgeValueOrDefault(4, 4, DEFAULT)).isEqualTo("valueD");

    String toString = graph.toString();

    # Core Vocabulary
    schema_: Optional[str] = Field(default=None, alias="$schema")
    vocabulary: Optional[str] = Field(default=None, alias="$vocabulary")
    id: Optional[str] = Field(default=None, alias="$id")
    anchor: Optional[str] = Field(default=None, alias="$anchor")
    dynamicAnchor: Optional[str] = Field(default=None, alias="$dynamicAnchor")
    ref: Optional[str] = Field(default=None, alias="$ref")

Your response model could have default values, like:

{* ../../docs_src/response_model/tutorial004_py310.py hl[9,11:12] *}

* `description: Union[str, None] = None` (or `str | None = None` in Python 3.10) has a default of `None`.
* `tax: float = 10.5` has a default of `10.5`.
* `tags: List[str] = []` has a default of an empty list: `[]`.

     * The default value is {@code "main"}.
     *
     * @see ProjectScope#MAIN
     */
    default ProjectScope scope() {
        return ProjectScope.MAIN;
    }

    /**
     * {@return the language of the source files}
     * The default value is {@code "java"}.
     *
     * @see Language#JAVA_FAMILY
     */
    default Language language() {

    assert '"dom_id": "#swagger-ui"' in response.text, (
        "default configs should be preserved"
    )
    assert "presets: [" in response.text, "default configs should be preserved"
    assert "SwaggerUIBundle.presets.apis," in response.text, (
        "default configs should be preserved"
    )
    assert "SwaggerUIBundle.SwaggerUIStandalonePreset" in response.text, (
        "default configs should be preserved"
    )

            Doc(
                """
                The default response class to be used.

                Read more in the
                [FastAPI docs for Custom Response - HTML, Stream, File, others](https://fastapi.tiangolo.com/advanced/custom-response/#default-response-class).
                """
            ),
        ] = Default(JSONResponse),
        responses: Annotated[

    assert '"dom_id": "#swagger-ui"' in response.text, (
        "default configs should be preserved"
    )
    assert "presets: [" in response.text, "default configs should be preserved"
    assert "SwaggerUIBundle.presets.apis," in response.text, (
        "default configs should be preserved"
    )
    assert "SwaggerUIBundle.SwaggerUIStandalonePreset" in response.text, (
        "default configs should be preserved"
    )

        assertTrue(DefaultMirrorSelector.matchesLayout("default", "default,legacy"));

        assertFalse(DefaultMirrorSelector.matchesLayout("default", "legacy,!default"));
        assertFalse(DefaultMirrorSelector.matchesLayout("default", "!default,legacy"));

        assertFalse(DefaultMirrorSelector.matchesLayout("default", "*,!default"));
        assertFalse(DefaultMirrorSelector.matchesLayout("default", "!default,*"));

### Query-Parameter-Liste / Mehrere Werte mit Defaults { #query-parameter-list-multiple-values-with-defaults }

Sie können auch eine Default-`list` von Werten definieren, wenn keine bereitgestellt werden:

{* ../../docs_src/query_params_str_validations/tutorial012_an_py39.py hl[9] *}

Wenn Sie zu:

```
http://localhost:8000/items/
```

gehen, wird der Default für `q` sein: `["foo", "bar"]`, und Ihre Response wird sein: