import { Observable } from 'rxjs';
import { OptionModel } from './dropdown-option.model';
import * as i0 from "@angular/core";
export declare class OptionsService {
    private $options;
    private $loading;
    get options(): OptionModel[];
    set options(options: OptionModel[]);
    get optionsObservable(): Observable<OptionModel[]>;
    get hasOptions(): boolean;
    set loading(state: boolean);
    get loading(): boolean;
    constructor();
    static ɵfac: i0.ɵɵFactoryDeclaration<OptionsService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<OptionsService>;
}