@Override
                  public Map<Range<Integer>, String> create(Object... elements) {
                    RangeMap<Integer, String> rangeMap = TreeRangeMap.create();
                    for (Object o : elements) {
                      @SuppressWarnings("unchecked")
                      Entry<Range<Integer>, String> entry = (Entry<Range<Integer>, String>) o;
                      rangeMap.put(entry.getKey(), entry.getValue());

We are going to start from where we left in the previous chapter and increment it.

## About JWT { #about-jwt }

JWT means "JSON Web Tokens".

It's a standard to codify a JSON object in a long dense string without spaces. It looks like this:

```
eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c
```

          <version>1.0.0/1.3.0</version>
          <code>
    public static final String USER_LEVEL = "user-level";
    public static final String PROJECT_LEVEL = "project-level";
    public static final String GLOBAL_LEVEL = "global-level";

    private String sourceLevel = USER_LEVEL;
    private boolean sourceLevelSet = false;

    public void setSourceLevel(String sourceLevel) {
        if (sourceLevelSet) {

    CacheLoader<String, String> computingFunction =
        new CacheLoader<String, String>() {
          @Override
          public String load(String key) throws InterruptedException {
            if (shouldWait.get()) {
              computingLatch.await();
            }
            return key;
          }
        };
    QueuingRemovalListener<String, String> listener = queuingRemovalListener();

    CacheLoader<String, String> computingFunction =
        new CacheLoader<String, String>() {
          @Override
          public String load(String key) throws InterruptedException {
            if (shouldWait.get()) {
              computingLatch.await();
            }
            return key;
          }
        };
    QueuingRemovalListener<String, String> listener = queuingRemovalListener();

   * String.class}, then {@code new TypeResolver().where(formal, actual)} will {@linkplain
   * #resolveType resolve} {@code ParameterizedType List<T>} to {@code List<String>}, and resolve
   * {@code Map<T, Something>} to {@code Map<String, Something>} etc. Similarly, {@code formal} and
   * {@code actual} can be {@code Map<K, V>} and {@code Map<String, Integer>} respectively, or they

If you generate a client for a FastAPI app using tags, it will normally also separate the client code based on the tags.

This way, you will be able to have things ordered and grouped correctly for the client code:

<img src="/img/tutorial/generate-clients/image06.png">

In this case, you have:

* `ItemsService`
* `UsersService`

      if (Thread.interrupted()) {
        throw new InterruptedException();
      }
      remainingNanos = endNanos - System.nanoTime();
    }

    String futureToString = toString();
    String unitString = unit.toString().toLowerCase(Locale.ROOT);
    String message = "Waited " + timeout + " " + unit.toString().toLowerCase(Locale.ROOT);
    // Only report scheduling delay if larger than our spin threshold - otherwise it's just noise

pkg strconv (openbsd-amd64-cgo), const IntSize = 64
pkg strconv (windows-386), const IntSize = 32
pkg strconv (windows-amd64), const IntSize = 64
pkg strings, func TrimPrefix(string, string) string
pkg strings, func TrimSuffix(string, string) string
pkg strings, method (*Reader) WriteTo(io.Writer) (int64, error)
pkg syscall (darwin-386), const AF_APPLETALK = 16
pkg syscall (darwin-386), const AF_CCITT = 10

            this.startDate = moment(options.startDate, this.locale.format);

        if (typeof options.endDate === 'string')
            this.endDate = moment(options.endDate, this.locale.format);

        if (typeof options.minDate === 'string')
            this.minDate = moment(options.minDate, this.locale.format);

        if (typeof options.maxDate === 'string')