import { Observable } from 'rxjs';
import { KToastButton, KToastMessage } from './toast';
import * as i0 from "@angular/core";
export declare class KToastService {
    private overlay;
    private componentRef?;
    notify(status: KToastMessage['status'], title: KToastMessage['title'], message?: KToastMessage['message'], buttons?: KToastMessage['buttons']): Observable<KToastButton | undefined>;
    notify(data: KToastMessage): Observable<KToastButton | undefined>;
    closeById(id: string): void;
    closeAll(): void;
    private createToastComponent;
    static ɵfac: i0.ɵɵFactoryDeclaration<KToastService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<KToastService>;
}