protected void addAttributeDefinition(
     SimpleAttributeDefinition definition,
     OperationStepHandler readHandler,
     OperationStepHandler writeHandler,
     ManagementResourceRegistration resourceRegistration) {
   SubsystemDescriber.addAttributeDefinition(this.modelElement, definition);
   resourceRegistration.registerReadWriteAttribute(definition, readHandler, writeHandler);
 }
 protected void addChildResourceDefinition(
     ResourceDefinition definition, ManagementResourceRegistration resourceRegistration) {
   SubsystemDescriber.addChildResourceDefinition(this.modelElement, definition);
   resourceRegistration.registerSubModel(definition);
 }