import { Observable } from 'rxjs';
import * as i0 from "@angular/core";
export declare class CacheService {
    cache: Map<string, Observable<any>>;
    getValue(key: string, fallback$: Observable<any>, putInWebStorage?: boolean): Observable<any>;
    invalidate(key: string): void;
    invalidateRange(keyPrefix: string): void;
    clear(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<CacheService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<CacheService>;
}