* <p>
     * If either or both arrays are {@literal null}, the other array is returned as is.
     * If either or both arrays have a length of {@literal 0}, the other array is returned as is.
     * In any case, the returned array is the same instance as the argument array and is not copied.
     * </p>
     *
     * @param <T>
     *            the type of the array elements
     * @param a
     *            first array

			tw := NewWriter(iotest.TruncateWriter(buf, maxSize))

			for i, tf := range v.tests {
				switch tf := tf.(type) {
				case testHeader:
					err := tw.WriteHeader(&tf.hdr)
					if !equalError(err, tf.wantErr) {
						t.Fatalf("test %d, WriteHeader() = %v, want %v", i, err, tf.wantErr)
					}
				case testWrite:
					got, err := tw.Write([]byte(tf.str))
					if got != tf.wantCnt || !equalError(err, tf.wantErr) {

        // Setup mock request manager with mixed case
        // LocaleUtils.toLocale is strict about case - it will throw exception for invalid format
        RequestManager mockRequestManager = createMockRequestManager("En_Us");

        // Execute
        OptionalThing<Locale> result = provider.findBusinessLocale(null, mockRequestManager);

        // Verify - invalid case format should return empty due to exception

func LookupConfigForSubSys(ctx context.Context, scfg config.Config, subSys string) (cfg Config, err error) {
	switch subSys {
	case config.LoggerWebhookSubSys:
		cfg = lookupLegacyConfigForSubSys(ctx, config.LoggerWebhookSubSys)
		if cfg, err = lookupLoggerWebhookConfig(scfg, cfg); err != nil {
			return cfg, err
		}
	case config.AuditWebhookSubSys:
		cfg = lookupLegacyConfigForSubSys(ctx, config.AuditWebhookSubSys)

    }

    /**
     * @param il
     * @return
     */
    private static int mapInformationLevel(final int il) {
        switch (il) {
        case FileSystemInformation.SMB_INFO_ALLOCATION:
            return 0x1;
        case FileSystemInformation.FS_SIZE_INFO:
            return 0x103;
        }
        throw new IllegalArgumentException("Unhandled information level");
    }

    @Override

        switch (contextName) {
        case LeaseV1CreateContextRequest.CONTEXT_NAME: // "RqLs"
            return new LeaseV1CreateContextResponse();
        case LeaseV2CreateContextRequest.CONTEXT_NAME: // "RqL2"
            return new LeaseV2CreateContextResponse();
        case "DHnQ": // Durable Handle Request/Response

	// Not supported yet
	// switch v.MFADelete {
	// case Enabled, Disabled:
	// default:
	// 	return Errorf("unsupported MFADelete state %s", v.MFADelete)
	// }
	switch v.Status {
	case Enabled:
		const maxExcludedPrefixes = 10
		if len(v.ExcludedPrefixes) > maxExcludedPrefixes {
			return errTooManyExcludedPrefixes
		}

	case Suspended:
		if len(v.ExcludedPrefixes) > 0 {

### Return a Response Directly { #return-a-response-directly }

The most common case would be [returning a Response directly as explained later in the advanced docs](../advanced/response-directly.md).

{* ../../docs_src/response_model/tutorial003_02_py310.py hl[8,10:11] *}

This simple case is handled automatically by FastAPI because the return type annotation is the class (or a subclass of) `Response`.

	}
	// validate if target credentials are ok
	exists, err := clnt.BucketExists(ctx, tgt.TargetBucket)
	if err != nil {
		switch minio.ToErrorResponse(err).Code {
		case "NoSuchBucket":
			return BucketRemoteTargetNotFound{Bucket: tgt.TargetBucket, Err: err}
		case "AccessDenied":
			return RemoteTargetConnectionErr{Bucket: tgt.TargetBucket, AccessKey: tgt.Credentials.AccessKey, Err: err}
		}

}

// addChild will add a child based on its hash.
// If it already exists it will not be added again.
func (e *dataUsageEntry) addChild(hash dataUsageHash) {
	if _, ok := e.Children[hash.Key()]; ok {
		return
	}
	if e.Children == nil {
		e.Children = make(dataUsageHashMap, 1)
	}
	e.Children[hash.Key()] = struct{}{}
}

// Create a clone of the entry.