@Component({
  selector: 'craig',
  template: `
  ‹div class="c"›
    ‹h3›Craig‹/h3›
    {{alex ? 'Found' : 'Did not find'}} Alex via the base class.
  ‹/div›`
})
export class CraigComponent {
  constructor( @Optional() public alex: Base ) { }
}