import { ElementViewModel, ISurfaceContext } from '@devexpress/analytics-core/analytics-elements';
import { ModelSerializer } from '@devexpress/analytics-core/analytics-utils';
import { ControlType } from './utils/_controlTypes';
import { XRControlSurface, XRControlViewModel } from './xrControl';
export declare class UnknownViewModel extends XRControlViewModel {
    constructor(model: any, parent: ElementViewModel<ControlType>, serializer?: ModelSerializer);
    _model: any;
}
export declare class TodoControlSurface extends XRControlSurface {
    constructor(control: XRControlViewModel, context: ISurfaceContext);
}