text: /** PURE_IMPORTS_START _scheduler_async,_map PURE_IMPORTS_END */
  import { async } from '../scheduler/async';
  import { map } from './map';
  /**
   * @param scheduler
   * @return {Observable<Timestamp<any>>|WebSocketSubject<T>|Observable<T>}
   * @method timestamp
   * @owner Observable
   */
  export function timestamp(scheduler) {
      if (scheduler === void 0) {
          scheduler = async;
      }
      return map(function (value) { return new Timestamp(value, scheduler.now()); });
      // return (source: Observable<T>) => source.lift(new TimestampOperator(scheduler));
  }
  var Timestamp = /*@__PURE__*/ (function () {
      function Timestamp(value, timestamp) {
          this.value = value;
          this.timestamp = timestamp;
      }
      return Timestamp;
  }());
  export { Timestamp };
  //# sourceMappingURL=timestamp.js.map
  