Here is an example of how the StatusListenerConfigHelper class from the logback library can be used:

import ch.qos.logback.classic.LoggerContext;
import ch.qos.logback.core.status.StatusListener;
import ch.qos.logback.core.util.StatusListenerConfigHelper;

public class MyClass {
    public static void main(String[] args) {
        LoggerContext loggerContext = new LoggerContext();
        StatusListener listener = new MyStatusListener();
        StatusListenerConfigHelper.addListener(listener, loggerContext);
    }
}

class MyStatusListener implements StatusListener {
    public void addStatusEvent(Status status) {
        // do something with the status event
    }
}

In this example, MyClass uses an instance of StatusListenerConfigHelper to add a status listener (MyStatusListener) to a LoggerContext object. The addListener method takes two arguments: a StatusListener object and a LoggerContext object. The MyStatusListener class must implement the addStatusEvent method which will be called with status events generated by the LoggerContext

You can also use installIfAsked method to add the listener if the context has been asked to install it.

StatusListenerConfigHelper.installIfAsked(listener, loggerContext);

This will check if the context has been asked to install the listener and then will add it.

You can also use removeListener method to remove the listener from the context.

StatusListenerConfigHelper.removeListener(listener, loggerContext);

This will remove the listener from the context.

Please note that StatusListenerConfigHelper is a utility class and it does not have any constructor.