import { Ng2VkService, ThemeColors } from '../../services/virtual-keyboard.service';
import { Observable } from 'rxjs';
export declare abstract class AfVkAbstractKeyComponent {
    protected _service: Ng2VkService;
    key: string;
    constructor(_service: Ng2VkService);
    onClick(event: MouseEvent): void;
    protected _keypress(): void;
    getThemeColor(): Observable<ThemeColors>;
}