import { Subject } from 'rxjs/Subject';
export declare const NOTIFICATIONS$: Subject<LKNotification>;
export declare class NotificationService {
    constructor();
    static timer: number;
    /**
     * Show an "error" notification
     */
    static error(message: string, buttons?: Array<{
        label: string;
        action: () => any;
    }>, timeout?: number): void;
    /**
     * Show a "warning" notification
     */
    static warning(message: string, buttons?: Array<{
        label: string;
        action: () => any;
    }>, timeout?: number): void;
    /**
     * Show a "info" notification
     */
    static info(message: string, buttons?: Array<{
        label: string;
        action: () => any;
    }>, timeout?: number): void;
    /**
     * Show a "success" notification
     */
    static success(message: string, buttons?: Array<{
        label: string;
        action: () => any;
    }>, timeout?: number): void;
}
export declare class LKNotification {
    type: 'info' | 'warning' | 'error' | 'success';
    message: string;
    buttons: Array<{
        label: string;
        action: () => any;
    }>;
    timeout: number;
    constructor(type: 'info' | 'warning' | 'error' | 'success', message: string, buttons?: Array<{
        label: string;
        action: () => any;
    }>, timeout?: number);
}