**FastAPI** now supports a new `@app.vibe()` decorator that embraces **modern AI coding best practices**. 🤖

## How It Works { #how-it-works }

The `@app.vibe()` decorator is intended to receive **any HTTP method** (`GET`, `POST`, `PUT`, `DELETE`, `PATCH`, etc.) and **any payload**.

The body should be annotated with `Any`, because the request and the response would be... well... **anything**. 🤷

// Scan advances the [Scanner] to the next token, which will then be
// available through the [Scanner.Bytes] or [Scanner.Text] method. It returns false when
// there are no more tokens, either by reaching the end of the input or an error.
// After Scan returns false, the [Scanner.Err] method will return any error that
// occurred during scanning, except that if it was [io.EOF], [Scanner.Err]
// will return nil.

     * Default constructor for FacetQueryView.
     */
    public FacetQueryView() {
        // Default constructor
    }

    /**
     * Initializes the facet query view with default file type queries.
     * This method is called after dependency injection to set up file type facets
     * and register all queries with the FacetInfo component.
     */
    @PostConstruct
    public void init() {

import org.jspecify.annotations.NullUnmarked;

/**
 * Unit test for {@link Files#createTempDir}.
 *
 * @author Chris Nokleberg
 */

@SuppressWarnings("deprecation") // tests of a deprecated method
@NullUnmarked
public class FilesCreateTempDirTest extends TestCase {
  public void testCreateTempDir() throws IOException {
    File temp = Files.createTempDir();
    try {
      assertThat(temp.exists()).isTrue();

 * tested in {@link FuturesTest}.
 */
@NullMarked
@GwtCompatible
public class FluentFutureTest extends TestCase {
  @SuppressWarnings({"deprecation", "InlineMeInliner"}) // test of a deprecated method
  public void testFromFluentFuture() {
    FluentFuture<String> f = FluentFuture.from(SettableFuture.create());
    assertThat(FluentFuture.from(f)).isSameInstanceAs(f);
  }

            SrvCopychunk chunk = new SrvCopychunk(sourceOffset, targetOffset, length);

            // Then
            assertNotNull(chunk);
        }
    }

    @Nested
    @DisplayName("Size Method Tests")
    class SizeTests {

        @Test
        @DisplayName("Should return correct size of 24 bytes")
        void testSize() {
            // Given
            SrvCopychunk chunk = new SrvCopychunk(0, 0, 0);

     * This field indicates when the job finished, if it has completed.
     */
    public String endTime;

    /**
     * Initializes the form with default null values.
     * This method resets all fields to their default state for creating a new entry.
     */
    public void initialize() {
        id = null;
        jobName = null;
        jobStatus = null;
        target = null;

   * some cases it may alter the input. For example, if the factory returns a sliced view of a
   * source created with some given bytes, this method would return a subsequence of the given
   * (byte[]) data.
   */
  T getExpected(T data);

  /** Cleans up anything created when creating the source or sink. */
  void tearDown() throws IOException;

   * escapes only the following five ASCII characters: {@code '"&<>}.
   */
  public static Escaper htmlEscaper() {
    return HTML_ESCAPER;
  }

  // For each xxxEscaper() method, please add links to external reference pages
  // that are considered authoritative for the behavior of that escaper.

  private static final Escaper HTML_ESCAPER =
      Escapers.builder()

     *
     * @param key the encryption key
     */
    public RC4(final byte[] key) {
        init(key, 0, key.length);
    }

    /**
     * Initializes the RC4 cipher with a key.
     * This method sets up the RC4 state array using the key scheduling algorithm.
     *
     * @param key the key array
     * @param ki the starting offset in the key array
     * @param klen the length of the key to use
     */