import { OnInit } from '@angular/core';
import { StateService } from '../../../core';
import { LanguagesService } from '../../../core';
export declare class BackButtonComponent implements OnInit {
    lang: LanguagesService;
    state: StateService;
    constructor(lang: LanguagesService, state: StateService);
    marginBottom: number;
    marginRight: number;
    ngOnInit(): void;
    backward(): void;
    onKeydownHandler(event: KeyboardEvent): void;
}