void testHMACT64WithEmptyData() {
        // Test with empty data
        HMACT64 hmac = new HMACT64(TEST_KEY);
        hmac.engineUpdate(EMPTY_DATA, 0, EMPTY_DATA.length);
        byte[] result = hmac.engineDigest();

        assertNotNull(result);
        assertEquals(16, result.length);
    }

    @Test
    void testHMACT64WithEmptyKey() {
        // Test with empty key
        byte[] emptyKey = new byte[0];

final class CompactLinkedHashMap<K extends @Nullable Object, V extends @Nullable Object>
    extends CompactHashMap<K, V> {
  // TODO(lowasser): implement removeEldestEntry so this can be used as a drop-in replacement

  /** Creates an empty {@code CompactLinkedHashMap} instance. */
  public static <K extends @Nullable Object, V extends @Nullable Object>
      CompactLinkedHashMap<K, V> create() {
    return new CompactLinkedHashMap<>();
  }

  /**

	// Make subtype to avoid recursive UnmarshalXML().
	type config Config
	parsedConfig := config{}
	if err := d.DecodeElement(&parsedConfig, &start); err != nil {
		return err
	}

	// Empty queue list means user wants to delete the notification configuration.
	if len(parsedConfig.QueueList) > 0 {
		for i, q1 := range parsedConfig.QueueList[:len(parsedConfig.QueueList)-1] {

}

var (
	errInvalidRuleID                          = Errorf("ID must be less than 255 characters")
	errEmptyRuleStatus                        = Errorf("Status should not be empty")
	errInvalidRuleStatus                      = Errorf("Status must be set to either Enabled or Disabled")
	errDeleteMarkerReplicationMissing         = Errorf("DeleteMarkerReplication must be specified")

  RecordedRequest(
    requestLine = requestLine,
    headers = headers,
    chunkSizes = chunkSizes ?: listOf(),
    bodySize = bodySize,
    body = Buffer().write(body ?: ByteString.EMPTY),
    sequenceNumber = exchangeIndex,
    failure = failure,
    method = method,
    path = target,
    handshake = handshake,
    requestUrl = url,

/**
 * Unit tests for {@link Base64}.
 *
 * These tests cover the public static encode/decode methods for different
 * payload sizes, padding rules, and error conditions such as null and empty
 * input.
 */
@ExtendWith(MockitoExtension.class)
class Base64Test {

    /**
     * Data provider for various byte arrays and the expected Base64 string.
     */
    static Stream<Arguments> encodeProvider() {

FastAPI will still be able to override it.

///

Then you can reset your overrides (remove them) by setting `app.dependency_overrides` to be an empty `dict`:

```Python
app.dependency_overrides = {}
```

/// tip

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

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

// UnmarshalJSON - parses given data into BoolFlag.
func (bf *BoolFlag) UnmarshalJSON(data []byte) (err error) {
	var s string
	if err = json.Unmarshal(data, &s); err == nil {
		b := BoolFlag(true)
		if s == "" {
			// Empty string is treated as valid.
			*bf = b
		} else if b, err = ParseBoolFlag(s); err == nil {
			*bf = b
		}
	}

	return err
}

// FormatBool prints stringified version of boolean.

import jakarta.validation.constraints.Size;

/**
 * The create form for User.
 *
 */
public class CreateForm {

    /**
     * Default constructor.
     */
    public CreateForm() {
        // Empty constructor
    }

    /**
     * The CRUD mode for the form.
     */
    @ValidateTypeFailure
    public Integer crudMode;

    /**
     * The username of the user.
     */
    @Required