*
   * @since 28.0
   */
  public <N1 extends N, E1 extends E> ImmutableNetwork.Builder<N1, E1> immutable() {
    NetworkBuilder<N1, E1> castBuilder = cast();
    return new ImmutableNetwork.Builder<>(castBuilder);
  }

  /**
   * Specifies whether the network will allow parallel edges. Attempting to add a parallel edge to a

	var listSTSKeys, listServiceAccounts bool
	switch listType {
	case madmin.AccessKeyListUsersOnly:
		listSTSKeys = false
		listServiceAccounts = false
	case madmin.AccessKeyListSTSOnly:
		listSTSKeys = true
		listServiceAccounts = false
	case madmin.AccessKeyListSvcaccOnly:
		listSTSKeys = false
		listServiceAccounts = true
	case madmin.AccessKeyListAll:
		listSTSKeys = true
		listServiceAccounts = true

	var signatureVersion string
	switch authType {
	case authTypeSignedV2, authTypePresignedV2:
		signatureVersion = signV2Algorithm
	case authTypeSigned, authTypePresigned, authTypeStreamingSigned, authTypePostPolicy:
		signatureVersion = signV4Algorithm
	}

	var authtype string
	switch authType {
	case authTypePresignedV2, authTypePresigned:
		authtype = "REST-QUERY-STRING"

    #
    #; isTableDispNameUpperCase = false
    # - - - - - - - - - -/

    # /- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    # o isTableSqlNameUpperCase: (NotRequired - Default false)
    #   [true]
    #     Table names on SQL executed by condition-bean or behavior
    #     are forcedly treated as upper case. (except outside-SQL)
    #

                case 0:
                    final ASN1Enumerated enumerated = ASN1Enumerated.getInstance(tagged, true);
                    setResult(enumerated.getValue().intValue());
                    break;
                case 1:
                    setMechanism(ASN1ObjectIdentifier.getInstance(tagged, true));
                    break;
                case 2:

        switch (values[0].toUpperCase(Locale.ROOT)) {
        case "GET":
            return curlHelper.get(path);
        case "POST":
            return curlHelper.post(path);
        case "PUT":
            return curlHelper.put(path);
        case "DELETE":
            return curlHelper.delete(path);
        default:
            break;
        }

    @Test
    void testDeployBuildPomWithStringTrueUpperCase() {
        // Test case-insensitive string parsing - TRUE
        Map<String, Object> properties = Map.of(Constants.MAVEN_DEPLOY_BUILD_POM, "TRUE");
        assertTrue(Features.deployBuildPom(properties));
    }

    @Test
    void testDeployBuildPomWithStringFalseUpperCase() {
        // Test case-insensitive string parsing - FALSE

 * <td>Traditional hexadecimal. Defaults to upper case.
 * <tr>
 * <td>{@link #base32()}
 * <td>A-Z 2-7
 * <td>1.60
 * <td>=
 * <td>Human-readable; no possibility of mixing up 0/O or 1/I. Defaults to upper case.
 * <tr>
 * <td>{@link #base32Hex()}
 * <td>0-9 A-V
 * <td>1.60
 * <td>=
 * <td>"Numerical" base 32; extended from the traditional hex alphabet. Defaults to upper case.
 * <tr>
 * <td>{@link #base64()}

// GetNonBlocking will return the singleton value or nil if not set yet.
func (s *Singleton[T]) GetNonBlocking() *T {
	select {
	case <-s.set:
		return s.v
	default:
		return nil
	}
}

// IsSet will return whether the singleton has been set.
func (s *Singleton[T]) IsSet() bool {
	select {
	case <-s.set:
		return true
	default:
		return false
	}
}

// Set the value and unblock all Get requests.

			q := queueItem{
				input: next,
				dst:   make(chan []jstream.KVS, 1),
				err:   err,
			}
			select {
			case <-r.close:
				return
			case r.queue <- &q:
			}

			select {
			case <-r.close:
				return
			case r.input <- &q:
			}
			if err != nil {
				// Exit on any error.
				return
			}
		}
	}()

	// Start parsers