```JSON
{"item_id":3}
```

/// check

Notice that the value your function received (and returned) is `3`, as a Python `int`, not a string `"3"`.

So, with that type declaration, **FastAPI** gives you automatic request <abbr title="converting the string that comes from an HTTP request into Python data">"parsing"</abbr>.

///

## Data validation { #data-validation }

    /** Bad word ID for search filtering. */
    public String id;

    /** Suggest word for search filtering. */
    public String suggestWord;

    /** Creator username for search filtering. */
    public String createdBy;

    /** Creation time for search filtering. */
    public String createdTime;

    /** Version number for search filtering. */
    public String versionNo;

    /**

    /**
     * The default HTTP port (<code>80</code>).
     */
    public static final int DEFAULT_HTTP_PORT = 80;

    private static final Map<String, URLStreamHandler> PROTOCOL_HANDLERS = new HashMap<>();

    private static final String HANDLER_PKGS_PROPERTY = "java.protocol.handler.pkgs";

    /**
     * Vendor-specific default packages. If no packages are specified in

      return 42;
    }
  }

  public void testPutReturnValue() {
    for (int i = 0; i < 10; i++) {
      BloomFilter<String> bf = BloomFilter.create(Funnels.unencodedCharsFunnel(), 100);
      for (int j = 0; j < 10; j++) {
        String value = new Object().toString();
        boolean mightContain = bf.mightContain(value);
        boolean put = bf.put(value);
        assertTrue(mightContain != put);
      }

    assertEquals(expected, actual);
  }

  private static final String TQBFJOTLD = "The quick brown fox jumps over the lazy dog";
  private static final String TQBFJOTLDP = "The quick brown fox jumps over the lazy dog.";

  private static final ImmutableTable<HashFunction, String, String> KNOWN_HASHES =
      ImmutableTable.<HashFunction, String, String>builder()
          .put(Hashing.adler32(), "", "01000000")

    )
    serverIpv6.enqueue(
      MockResponse(body = "hello from IPv6"),
    )

    val call = client.newCall(Request(url))
    val response = call.execute()
    assertThat(response.body.string()).isEqualTo("hello from IPv6")

    // In the process we made one successful connection attempt.
    assertThat(listener.recordedEventTypes().filter { it == "ConnectStart" }).hasSize(1)

    public long ttl;
    /** Target server for this referral */
    public String server; // Server
    /** Target share for this referral */
    public String share; // Share
    /** The complete UNC path link */
    public String link;
    /** Path relative to tree from which this referral was thrown */
    public String path; // Path relative to tree from which this referral was thrown

  }

  // Class.cast is not supported in GWT.  This method is a no-op in GWT.
  static void checkCast(Class<?> clazz, Object obj) {
    Object unused = clazz.cast(obj);
  }

  static String format(String template, Object... args) {
    return String.format(Locale.ROOT, template, args);
  }

  private Platform() {}

 *
 * Each test is a line of the file `toascii.json`.
 */
@Serializable
class WebPlatformToAsciiData {
  var input: String? = null
  var output: String? = null
  var comment: String? = null

  override fun toString() = "input=$input output=$output"

  companion object {
    fun load(): List<WebPlatformToAsciiData> {

  }

  // Class.cast is not supported in GWT.  This method is a no-op in GWT.
  static void checkCast(Class<?> clazz, Object obj) {
    Object unused = clazz.cast(obj);
  }

  static String format(String template, Object... args) {
    return String.format(Locale.ROOT, template, args);
  }

  private Platform() {}