import { BehaviorSubject } from 'rxjs/BehaviorSubject';
import { Feature } from '../../feature';
import { OverlayAction } from './overlay.interface';
export declare class OverlayService {
    features$: BehaviorSubject<[Feature[], OverlayAction]>;
    constructor();
    setFeatures(features: Feature[], action?: OverlayAction): void;
    clear(): void;
}