import { BehaviorSubject } from 'rxjs/BehaviorSubject';
import { Feature } from './feature.interface';
export declare class FeatureService {
    features$: BehaviorSubject<Feature[]>;
    focusedFeature$: BehaviorSubject<Feature>;
    selectedFeature$: BehaviorSubject<Feature>;
    constructor();
    setFeatures(features: Feature[]): void;
    updateFeatures(features: Feature[], source: string, sourcesToKeep?: string[]): void;
    clear(): void;
    focusFeature(feature: Feature): void;
    selectFeature(feature: Feature): void;
    unfocusFeature(): void;
    unselectFeature(): void;
    featuresAreTheSame(feature1: any, feature2: any): boolean;
    private sortFeatures(feature1, feature2);
}