import { Injector, TemplateRef } from '@angular/core';
import { Overlay } from '@angular/cdk/overlay';
import { ToastRef } from './toast-ref';
export declare type ToastType = 'info' | 'success' | 'attention' | 'alert';
export interface ToastContent {
    type: ToastType;
    body?: string | TemplateRef<any>;
}
export interface ToastConfig {
    content?: ToastContent;
    position?: {
        top: number;
    };
    animation?: {
        fadeOut: number;
        fadeIn: number;
    };
}
export declare class ToastService {
    private injector;
    private overlay;
    private lastToast;
    constructor(injector: Injector, overlay: Overlay);
    show(config?: ToastConfig): ToastRef;
    private createOverlay;
    private attachToastContainer;
    private createInjector;
    private getOverlayConfig;
    getPosition(config: ToastConfig): string;
}