/*
   * This class is used to serialize all ImmutableSortedSet instances,
   * regardless of implementation type. It captures their "logical contents"
   * only. This is necessary to ensure that the existence of a particular
   * implementation type is an implementation detail.
   */
  @J2ktIncompatible // serialization
  private static final class SerializedForm<E> implements Serializable {

* For error messages related changes, follow the [ErrorMessages Guide](contributing/ErrorMessages.md).
* Add Javadoc for new methods and classes, following the [Javadoc Style Guide](contributing/JavadocStyleGuide.md). Javadoc is *required* for new public, top-level types.

/**
 * Static methods pertaining to ASCII characters (those in the range of values {@code 0x00} through
 * {@code 0x7F}), and to strings containing such characters.
 *
 * <p>ASCII utilities also exist in other classes of this package:
 *
 * <ul>
 *   <!-- TODO(kevinb): how can we make this not produce a warning when building gwt javadoc? -->
 *   <li>{@link StandardCharsets#US_ASCII} specifies the {@code Charset} of ASCII characters.

  public void testGet_bad() {
    ImmutableIntArray iia = ImmutableIntArray.of(0, 1, 3);
    assertThrows(IndexOutOfBoundsException.class, () -> iia.get(-1));
    assertThrows(IndexOutOfBoundsException.class, () -> iia.get(3));

    ImmutableIntArray sub = iia.subArray(1, 2);
    assertThrows(IndexOutOfBoundsException.class, () -> sub.get(-1));
  }

  public void testIndexOf() {

Pero cuando importas `Query`, `Path`, `Depends`, `Security` y otros de `fastapi`, en realidad son funciones que devuelven clases especiales.

///

## Usar `SecurityScopes` { #use-securityscopes }

Ahora actualiza la dependencia `get_current_user`.

Esta es la que usan las dependencias anteriores.

    static Comparator<byte[]> getBestComparator() {
      try {
        Class<? extends LexicographicalComparator> unsafeImpl =
            Class.forName(UNSAFE_COMPARATOR_NAME).asSubclass(LexicographicalComparator.class);
        // requireNonNull is safe because the class is an enum.
        LexicographicalComparator unsafeComparator =
            requireNonNull(unsafeImpl.getEnumConstants())[0];

            throw new TransferFailedException("Authorization failed: " + e.getMessage(), e);
        } finally {
            // Remove remaining TransferListener instances (checksum handlers removed in above finally clause)
            if (downloadMonitor != null) {
                wagon.removeTransferListener(downloadMonitor);
            }

            disconnectWagon(wagon);

            releaseWagon(protocol, wagon);

In **SQLModel**, any model class that has `table=True` is a **table model**.

And any model class that doesn't have `table=True` is a **data model**, these ones are actually just Pydantic models (with a couple of small extra features). 🤓

With SQLModel, we can use **inheritance** to **avoid duplicating** all the fields in all the cases.

#### `HeroBase` - the base class { #herobase-the-base-class }

```Python hl_lines="1"
{!> ../../docs_src/python_types/tutorial009_py310.py!}
```

////

그냥 `str` 대신 `str | None`을 사용하면, 값이 항상 `str`이라고 가정하고 있지만 실제로는 `None`일 수도 있는 상황에서 에디터가 오류를 감지하도록 도와줍니다.

### 타입으로서의 클래스 { #classes-as-types }

변수의 타입으로 클래스를 선언할 수도 있습니다.

이름을 가진 `Person` 클래스가 있다고 해봅시다:

{* ../../docs_src/python_types/tutorial010_py310.py hl[1:3] *}

그러면 `Person` 타입의 변수를 선언할 수 있습니다:

        BlockingQueue.class,
        BlockingDeque.class,
        PriorityBlockingQueue.class,
        DelayQueue.class,
        SynchronousQueue.class,
        ConcurrentMap.class,
        ConcurrentNavigableMap.class,
        AtomicReference.class,
        AtomicBoolean.class,
        AtomicInteger.class,
        AtomicLong.class,
        AtomicDouble.class);
  }