* Data conversion
* Data validation
* Automatic documentation

## Special types and validation { #special-types-and-validation }

Apart from normal singular types like `str`, `int`, `float`, etc. you can use more complex singular types that inherit from `str`.

     * Adds a sitemap to this set.
     * @param sitemap the sitemap to add
     */
    public void addSitemap(final Sitemap sitemap) {
        sitemapList.add(sitemap);
    }

    /**
     * Removes a sitemap from this set.
     * @param sitemap the sitemap to remove
     */
    public void removeSitemap(final Sitemap sitemap) {
        sitemapList.remove(sitemap);
    }

    /**

        // Apply each converter in sequence
        for (final ReadingConverter converter : converters) {
            final List<String> nextInputs = new ArrayList<>();

            // Process each input from the previous converter
            for (final String input : currentInputs) {
                if (resultSet.size() >= getMaxReadingNum()) {
                    break;
                }

    public boolean changePassword(final String username, final String password) {
        return chains().get(stream -> stream.allMatch(c -> c.changePassword(username, password)));
    }

    /**
     * Deletes a user from all authentication chains.
     * @param user The user to delete.
     */
    public void delete(final User user) {
        chains().of(stream -> stream.forEach(c -> c.delete(user)));
    }

    /**

    return ofClassAndContents(Object.class, (E[]) new Object[0], asList(contents));
  }

  @SuppressWarnings("unchecked") // empty Object[] as E[]
  public static <E extends @Nullable Object> MinimalSet<E> from(Collection<? extends E> contents) {
    return ofClassAndContents(Object.class, (E[]) new Object[0], contents);
  }

  public static <E extends @Nullable Object> MinimalSet<E> ofClassAndContents(

    }

    /**
     * Creates a new result with the specified contents.
     *
     * @param projectId The identifier of the project, may be {@code null}.
     * @param pomFile The POM file from which the project was built, may be {@code null}.
     * @param problems The problems that were encountered, may be {@code null}.
     */
    DefaultProjectBuildingResult(String projectId, File pomFile, List<ModelProblem> problems) {

'StaticFiles'를 사용하여 디렉토리에서 정적 파일을 자동으로 제공할 수 있습니다.

## `StaticFiles` 사용

* `StaticFiles` 임포트합니다.
* 특정 경로에 `StaticFiles()` 인스턴스를 "마운트" 합니다.

{* ../../docs_src/static_files/tutorial001.py hl[2,6] *}

/// note | 기술적 세부사항

`from starlette.staticfiles import StaticFiles` 를 사용할 수도 있습니다.

**FastAPI**는 단지 개발자인, 당신에게 편의를 제공하기 위해 `fastapi.static files` 와 동일한 `starlett.static files`를 제공합니다. 하지만 사실 이것은 Starlett에서 직접 온 것입니다.

///

### "마운팅" 이란

    return ofClassAndContents(Object.class, (E[]) new Object[0], asList(contents));
  }

  @SuppressWarnings("unchecked") // empty Object[] as E[]
  public static <E extends @Nullable Object> MinimalSet<E> from(Collection<? extends E> contents) {
    return ofClassAndContents(Object.class, (E[]) new Object[0], contents);
  }

  public static <E extends @Nullable Object> MinimalSet<E> ofClassAndContents(

/**
 *
 * @since 4.0.0
 */
@Experimental
public interface DependencyCoordinatesFactory extends Service {

    /**
     * Creates a new {@link DependencyCoordinates} object from the request.
     *
     * @param request the request containing the various data
     * @return a new {@link DependencyCoordinates} object
     *
     * @throws IllegalArgumentException if {@code request} is null or

        assertEquals("root", root.context());
        assertEquals("level1", level1.context());
        assertEquals("level2", level2.context());
        assertEquals("level2", level3.context()); // Inherited from parent
    }