Class<?>[] getServiceClasses() {
		Class<?>[] classes = new Class[services.size()];
		for (int i = 0; i < classes.length; i++) {
			classes[i] = (services.get(i)).interfaceClass;
		}
		return classes;
	}
Fire the given plugin event; the tool notifies all other plugins
who are interested in receiving the given event type.
@param event event to fire
Ghidra/Framework/Project/src/main/java/ghidra/framework/plugintool/Plugin.java