import { OverlayRef } from '@angular/cdk/overlay';
import { ToastContainer } from './toast-container.component';
export declare class ToastRef {
    private readonly overlayRef;
    componentInstance: ToastContainer;
    constructor(overlayRef: OverlayRef);
    isVisible(): HTMLElement;
    getPosition(): DOMRect | ClientRect;
    close(data?: any): void;
}