import { Observable } from 'rxjs';
import * as i0 from "@angular/core";
export interface DatePreferenceContainer {
    preference: {
        dateFormat: string | null | undefined;
        timeFormat: string | null | undefined;
    } | null | undefined;
}
export declare class UserPreferenceService {
    getPreferences(): Observable<DatePreferenceContainer>;
    static ɵfac: i0.ɵɵFactoryDeclaration<UserPreferenceService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<UserPreferenceService>;
}
