## Use Case { #use-case }

Let's start with an example **use case** and then see how to solve it with this.

Let's imagine that you have some **machine learning models** that you want to use to handle requests. 🤖

	return rt != NoResync
}

func (rt ResyncStatusType) String() string {
	switch rt {
	case ResyncStarted:
		return "Ongoing"
	case ResyncCompleted:
		return "Completed"
	case ResyncFailed:
		return "Failed"
	case ResyncPending:
		return "Pending"
	case ResyncCanceled:
		return "Canceled"
	default:
		return ""
	}
}

	for {
		if !globalCallhomeConfig.Enabled() {
			// Stop the processing as callhome got disabled
			return false
		}

		select {
		case <-ctx.Done():
			// indicates that we do not need to run callhome anymore
			return false
		case <-callhomeTimer.C:
			if !globalCallhomeConfig.Enabled() {
				// Stop the processing as callhome got disabled
				return false
			}

			performCallhome(ctx)

                    }
                    setMechanisms(mechs);
                    break;
                case 1:
                    final ASN1BitString ctxFlags = ASN1BitString.getInstance(tagged, true);
                    setContextFlags(ctxFlags.getBytes()[0] & 0xff);
                    break;
                case 2:
                    final ASN1OctetString mechanismToken = ASN1OctetString.getInstance(tagged, true);

	}

	for _, columnType := range columnTypes {
		switch columnType.Name() {
		case "bonus":
			// allow to change non-nullable to nullable
			if nullable, _ := columnType.Nullable(); !nullable {
				t.Fatalf("bonus's nullable should be true, bug got %t", nullable)
			}
		case "stock":
			// do not allow to change nullable to non-nullable
			if nullable, _ := columnType.Nullable(); !nullable {

            case WitnessAsyncNotifyMessage.WitnessNotificationMessage.WITNESS_CLIENT_MOVE:
            case WitnessAsyncNotifyMessage.WitnessNotificationMessage.WITNESS_SHARE_MOVE:
                if (message.getDestinationNode() != null) {
                    notification.setNewNodeAddress(message.getDestinationNode());
                }
                break;

    }

    @Test
    void constructor_shouldInitializeValueCorrectly() {
        // Test case 1: Positive value
        int positiveValue = 12345;
        NdrLong ndrLongPositive = new NdrLong(positiveValue);
        assertEquals(positiveValue, ndrLongPositive.value, "Constructor should correctly initialize with a positive value.");

        // Test case 2: Negative value
        int negativeValue = -54321;

func Index(s, sep []byte) int {
	n := len(sep)
	switch {
	case n == 0:
		return 0
	case n == 1:
		return IndexByte(s, sep[0])
	case n == len(s):
		if Equal(sep, s) {
			return 0
		}
		return -1
	case n > len(s):
		return -1
	case n <= bytealg.MaxLen:
		// Use brute force when s and sep both are small
		if len(s) <= bytealg.MaxBruteForce {

     * @throws ArtifactInstallerException in case of an error
     * @throws IllegalArgumentException in case {@code request} is {@code null}
     */
    void install(@Nonnull ArtifactInstallerRequest request);

    /**
     * @param session the repository session
     * @param artifact the {@link ProducedArtifact} to install
     * @throws ArtifactInstallerException in case of an error which can be a given artifact cannot be found or the

	err = unwrapAll(err)
	switch err {
	case errDiskStale:
		w.WriteHeader(http.StatusPreconditionFailed)
	case errFileNotFound, errFileVersionNotFound:
		w.WriteHeader(http.StatusNotFound)
	case errInvalidAccessKeyID, errAccessKeyDisabled, errNoAuthToken, errMalformedAuth, errAuthentication, errSkewedAuthTime:
		w.WriteHeader(http.StatusUnauthorized)
	case context.Canceled, context.DeadlineExceeded:
		w.WriteHeader(499)