private static Object getField(Object target, String name) {
        try {
            var f = target.getClass().getDeclaredField(name);
            f.setAccessible(true);
            return f.get(target);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    private static void setField(Object target, String name, Object value) {
        try {

     * the map above is used to immediately
     * map to NTSTATUS codes.
     */
    /**
     * Human-readable error messages corresponding to DOS error codes.
     * Array of descriptive strings for each DOS error condition.
     */
    String[] DOS_ERROR_MESSAGES = { "The operation completed successfully.", "Incorrect function.", "Incorrect function.",

     * to immediately map to NTSTATUS codes.
     */
    /**
     * Human-readable error messages corresponding to DOS error codes.
     * Array of descriptive strings for each DOS error condition.
     */
    String[] DOS_ERROR_MESSAGES = { "The operation completed successfully.", "Incorrect function.", "Incorrect function.",

                        }
                    }
                } catch (final Exception e) {
                    logger.log(Level.WARNING, e, () -> {
                        final String canonicalPath = possibleJar.getCanonicalPath();
                        return "Failed to read " + canonicalPath;
                    });
                }
            }
        }
    }

public class IOIntegrationTest {

    private static final Logger logger = Logger.getLogger(IOIntegrationTest.class.getName());

    class MockCurlRequest extends CurlRequest {

        MockCurlRequest(Curl.Method method, String url) {
            super(method, url);
        }

        @Override
        public void connect(Consumer<HttpURLConnection> actionListener, Consumer<Exception> exceptionListener) {
            try {

    )
    var request = Request.Builder().url(server.url("/")).build()
    repeat(2) {
      val response = client.newCall(request).execute()

      if (response.code == 401) {
        assertThat(response.body.string()).isEqualTo("{\"error\":{\"message\":\"No auth credentials found\",\"code\":401}}")
        request = request.newBuilder().header("Authorization", "XYZ").build()
      } else {
        response.processEventSource(listener)

  /** Override to call {@code indexOf()} or {@code lastIndexOf()}. */
  protected abstract int find(@Nullable Object o);

  /** Override to return "indexOf" or "lastIndexOf()" for use in failure messages. */
  protected abstract String getMethodName();

  @CollectionSize.Require(absent = ZERO)
  public void testFind_yes() {
    assertEquals(
        getMethodName() + "(firstElement) should return 0", 0, find(getOrderedElements().get(0)));
  }

     *
     * @param loginContextName the name of the JAAS login context
     * @throws LoginException if authentication fails
     */
    public KerberosCredentials(String loginContextName) throws LoginException {
        LoginContext lc = new LoginContext(loginContextName);
        lc.login();
        this.subject = lc.getSubject();
    }

    /**

    }

    @Override
    public String toString() {
        StringBuilder buf = new StringBuilder();

        buf.append(isLowerBoundInclusive() ? '[' : '(');
        if (getLowerBound() != null) {
            buf.append(getLowerBound().toString());
        }
        buf.append(',');
        if (getUpperBound() != null) {
            buf.append(getUpperBound().toString());
        }

For example:

{* ../../docs_src/conditional_openapi/tutorial001.py hl[6,11] *}

Here we declare the setting `openapi_url` with the same default of `"/openapi.json"`.

And then we use it when creating the `FastAPI` app.

Then you could disable OpenAPI (including the UI docs) by setting the environment variable `OPENAPI_URL` to the empty string, like:

<div class="termy">

```console
$ OPENAPI_URL= uvicorn main:app