public interface  com.github.javaparser.ast.observer.Observable extends java.lang.Object
{
public abstract void register(com.github.javaparser.ast.observer.AstObserver);
public abstract void unregister(com.github.javaparser.ast.observer.AstObserver);
public abstract boolean isRegistered(com.github.javaparser.ast.observer.AstObserver);
}