* BCAST, Node Status) we need to augment the hashcode generated
                 * for the addresses hostname or failed lookups for one type will
                 * be cached and cause other types to fail even though they may
                 * not be the authority for the name. For example, if a WINS lookup
                 * for FOO fails and caches unknownAddress for FOO, a subsequent

     * Encodes an NDR referent pointer.
     *
     * @param obj the object to encode as a referent
     * @param type the referent type
     */
    public void enc_ndr_referent(final Object obj, final int type) {
        if (obj == null) {
            enc_ndr_long(0);
            return;
        }
        switch (type) {
        case 1: /* unique */
        case 3: /* ref */
            enc_ndr_long(System.identityHashCode(obj));

        assertNotNull(errorHandler, "Error handler should not be null");

        // Test error classification for different exception types
        Exception hardwareError = new RuntimeException("RDMA hardware not supported");
        Exception networkError = new java.io.IOException("Network connection failed");

        assertEquals(0, results.size());
    }

    public void test_getAccessResultList_withFilterTx() {
        final String sessionId = "callback_session3";

        // Insert test data with different MIME types
        final OpenSearchAccessResult htmlResult = new OpenSearchAccessResult();
        htmlResult.setContentLength(Long.valueOf(100));
        htmlResult.setCreateTime(System.currentTimeMillis());

    //                                                                           =========
    /** Service for label type operations. */
    @Resource
    private LabelTypeService labelTypeService;

    /** Pager for label type list pagination. */
    @Resource
    private LabelTypePager labelTypePager;

    /** Service for role type operations. */
    @Resource
    private RoleTypeService roleTypeService;

Wenn Sie eine zweiminütige Auffrischung benötigen, wie man Python-Typen verwendet (auch wenn Sie FastAPI nicht benutzen), schauen Sie sich das kurze Tutorial an: [Einführung in Python-Typen](python-types.md){.internal-link target=_blank}.

Sie schreiben Standard-Python mit Typen:

```Python
from datetime import date

from pydantic import BaseModel

///

## Add custom headers { #add-custom-headers }

There are some situations in where it's useful to be able to add custom headers to the HTTP error. For example, for some types of security.

You probably won't need to use it directly in your code.

But in case you needed it for an advanced scenario, you can add custom headers:

{* ../../docs_src/handling_errors/tutorial002_py39.py hl[14] *}

이를 위해 표준 Python 타입 힌트인 <a href="https://docs.python.org/3/library/typing.html#typing.Union" class="external-link" target="_blank">`typing.Union`</a>을 사용할 수 있습니다:

/// note | 참고

<a href="https://docs.pydantic.dev/latest/concepts/types/#unions" class="external-link" target="_blank">`Union`</a>을 정의할때는 더 구체적인 타입을 먼저 포함하고, 덜 구체적인 타입을 그 뒤에 나열해야합니다. 아래 예제에서는 `Union[PlaneItem, CarItem]` 를 보면, 더 구체적인 `PlaneItem`이 `CarItem`보다 앞에 위치합니다.

///

	RangeRequested   string `xml:"RangeRequested,omitempty" json:"RangeRequested,omitempty"`
}

// APIErrorCode type of error status.
type APIErrorCode int

//go:generate stringer -type=APIErrorCode -trimprefix=Err $GOFILE

// Error codes, non exhaustive list - http://docs.aws.amazon.com/AmazonS3/latest/API/ErrorResponses.html
const (
	ErrNone APIErrorCode = iota

    /**
     * Converts an array to a list.
     * <p>
     * The source array can be a primitive array. In that case, the resulting list will contain the corresponding wrapper types.
     * </p>
     *
     * @param <T>
     *            the type of the array elements
     * @param array
     *            the array
     * @return the list
     */
    @SuppressWarnings("unchecked")