Starlette によって使用されるもの:

- <a href="https://www.python-httpx.org" target="_blank"><code>httpx</code></a> - `TestClient`を使用するために必要です。
- <a href="https://jinja.palletsprojects.com" target="_blank"><code>jinja2</code></a> - デフォルトのテンプレート設定を使用する場合は必要です。

     * Can return {@code null}.
     *
     * @return InputLocation
     * @since 4.0.0
     */
    @Override
    public InputLocation getImportedFrom() {
        return importedFrom;
    }

    /**
     * Merges the {@code source} location into the {@code target} location.
     *
     * @param target the target location

      </fields>
      <codeSegments>
        <codeSegment>
          <version>1.0.0+</version>
          <code>
            <![CDATA[
    /**
     * Gets the identifier of the extension.
     *
     * @return The extension id in the form {@code <groupId>:<artifactId>:<version>}, never {@code null}.
     */
    public String getId() {
        return (getGroupId() == null ? "[unknown-group-id]" : getGroupId())

     * Gets the relative path for a locally installed artifact.
     * Note that the artifact need not actually exist yet at
     * the returned location, the path merely indicates where
     * the artifact would eventually be stored.
     *
     * @param session The session to use, must not be {@code null}.
     * @param artifact The artifact for which to determine the path, must not be {@code null}.

    this.delegate = new ArrayDeque<>(maxSize);
    this.maxSize = maxSize;
  }

  /**
   * Creates and returns a new evicting queue that will hold up to {@code maxSize} elements.
   *
   * <p>When {@code maxSize} is zero, elements will be evicted immediately after being added to the
   * queue.
   */
  public static <E> EvictingQueue<E> create(int maxSize) {
    return new EvictingQueue<>(maxSize);

    //                                                                        ============
    /**
     * Verify the CRUD mode.
     * @param crudMode The CRUD mode.
     * @param expectedMode The expected mode.
     */
    protected void verifyCrudMode(final int crudMode, final int expectedMode) {
        if (crudMode != expectedMode) {
            throwValidationError(messages -> {

Das `@app.get("/")` sagt **FastAPI**, dass die Funktion direkt darunter für die Bearbeitung von Anfragen zuständig ist, die an:

 * den Pfad `/`
 * unter der Verwendung der <abbr title="eine HTTP GET Methode"><code>get</code>-Operation</abbr> gehen

/// info | `@decorator` Information

Diese `@something`-Syntax wird in Python „Dekorator“ genannt.

import java.util.Set;
import org.jspecify.annotations.Nullable;

/**
 * Based on what a {@link Type} is, dispatch it to the corresponding {@code visit*} method. By
 * default, no recursion is done for type arguments or type bounds. But subclasses can opt to do
 * recursion by calling {@link #visit} for any {@code Type} while visitation is in progress. For
 * example, this can be used to reject wildcards or type variables contained in a type as in:
 *

* <a href="https://github.com/JoshData/python-email-validator" target="_blank"><code>email-validator</code></a> - per la validazione di email.

Usate da Starlette:

* <a href="http://docs.python-requests.org" target="_blank"><code>requests</code></a> - Richiesto se vuoi usare il `TestClient`.
* <a href="https://github.com/Tinche/aiofiles" target="_blank"><code>aiofiles</code></a> - Richiesto se vuoi usare `FileResponse` o `StaticFiles`.

    return result;
  }

  /**
   * Streams lines from a {@link Readable} object, stopping when the processor returns {@code false}
   * or all lines have been read and returning the result produced by the processor. Does not close
   * {@code readable}. Note that this method may not fully consume the contents of {@code readable}
   * if the processor stops processing early.
   *
   * @throws IOException if an I/O error occurs