import { Orientation } from '@mezzanine-ui/system/orientation';
export type ButtonGroupOrientation = Orientation;
export declare const buttonGroupPrefix: "mzn-button-group";
export declare const buttonGroupClasses: {
    readonly host: "mzn-button-group";
    readonly fullWidth: "mzn-button-group--full-width";
    readonly orientation: (orientation: ButtonGroupOrientation) => string;
};