import { HttpClient } from '@angular/common/http';
import { IUserPreference } from './user-preference.model';
import { ConfigurationsService } from './configurations.service';
import * as i0 from "@angular/core";
export declare class UserPreferenceService {
    private http;
    private configurationSvc;
    constructor(http: HttpClient, configurationSvc: ConfigurationsService);
    initialize(): void;
    fetchUserPreference(): Promise<IUserPreference>;
    saveUserPreference(changedUserPref?: Partial<IUserPreference>): Promise<boolean>;
    static ɵfac: i0.ɵɵFactoryDeclaration<UserPreferenceService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<UserPreferenceService>;
}