import { EventEmitter } from '@angular/core';
import { HttpClient } from '@angular/common/http';
export declare class TranslateService {
    private _http;
    constructor(_http: HttpClient);
    onReady: EventEmitter<void>;
    onUpdate: EventEmitter<void>;
    ready: boolean;
    private _data;
    private _language;
    private _path;
    use(language: string, path?: string): Promise<boolean>;
    get(path: string): string;
    private _save;
    private _restore;
    private _update;
    private _getKey;
}
export interface TranslateData {
    [key: string]: string | TranslateData;
}