angular-cn/public/docs/_examples/pipes/ts/app/heroes.ts

export interface Flyer { canFly: boolean }
export const HEROES =  [
  {"name": "Windstorm", "canFly": true},
  {"name": "Bombasto",  "canFly": false},
  {"name": "Magneto",   "canFly": false},
  {"name": "Tornado",   "canFly": true}
];