为此，请使用 Python 标准类型提示 <a href="https://docs.python.org/3/library/typing.html#typing.Union" class="external-link" target="_blank">`typing.Union`</a>：

/// note | 笔记

定义 <a href="https://docs.pydantic.dev/latest/concepts/types/#unions" class="external-link" target="_blank">`Union`</a> 类型时，要把详细的类型写在前面，然后是不太详细的类型。下例中，更详细的 `PlaneItem` 位于 `Union[PlaneItem，CarItem]` 中的 `CarItem` 之前。

///

                        "required": ["loc", "msg", "type"],
                        "type": "object",
                        "properties": {
                            "loc": {
                                "title": "Location",
                                "type": "array",
                                "items": {
                                    "anyOf": [{"type": "string"}, {"type": "integer"}]
                                },

        AccessResultImpl<Long> result = new AccessResultImpl<>();
        assertTrue(result instanceof AccessResult);
    }

    public void test_genericTypeFlexibility() {
        // Test with different generic types
        AccessResultImpl<Integer> intResult = new AccessResultImpl<>();
        intResult.setId(42);
        assertEquals(Integer.valueOf(42), intResult.getId());

        // Act & Assert
        assertFalse(a.equals(b), "Different content should not be equal");
    }

    // Confirms equals() rejects null and different types
    @Test
    @DisplayName("equals: null or different type -> false")
    void equals_nullAndDifferentType_false() {
        // Arrange
        SecurityBlob a = new SecurityBlob(new byte[] { 1 });

        // Act & Assert

/// note | Nota

</div>

/// tip | Совет

Подробнее об этом можно прочитать на сайте <a href="https://12factor.net/config" class="external-link" target="_blank">The Twelve-Factor App: Config</a>.

///

## Типизация и Валидация { #types-and-validation }

* Making the `tf.function` type system fully available:

    * `tf.types.experimental.TraceType` now allows custom tf.function inputs to declare Tensor decomposition and type casting support.

or <a href="#Type_parameter_declarations">type parameter lists</a>.
<i>Composite types</i>&mdash;array, struct, pointer, function,
interface, slice, map, and channel types&mdash;may be constructed using
type literals.
</p>

<p>
Predeclared types, defined types, and type parameters are called <i>named types</i>.
An alias denotes a named type if the type given in the alias declaration is a named type.
</p>

/**
 * Job class for generating thumbnails for documents in the search engine.
 * This job executes the ThumbnailGenerator process as a separate JVM process
 * to create thumbnail images for supported document types.
 */
public class GenerateThumbnailJob extends ExecJob {
    /** Logger for this class. */
    static final Logger logger = LogManager.getLogger(GenerateThumbnailJob.class);

 * Range}, this allows the use of an arbitrary comparator. This is designed for use in the
 * implementation of subcollections of sorted collection types.
 *
 * <p>Whenever possible, use {@code Range} instead, which is better supported.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
final class GeneralRange<T extends @Nullable Object> implements Serializable {