import { ISurfaceContext } from '@devexpress/analytics-core/analytics-elements';
import * as ko from 'knockout';
import { XRControlSurface, XRControlViewModel } from './xrControl';
export declare class XRZipCodeSurface extends XRControlSurface {
    constructor(control: XRControlViewModel, context: ISurfaceContext);
    fontSize: ko.Computed<number>;
    letterSpacing: ko.Computed<number>;
}