import React, { PureComponent } from 'react';
import { ButtonGroupItemId } from './buttonGroupItem';
interface ButtonGroupTheme {
    readonly buttonGroup: string;
}
export interface ButtonGroupProps {
    /**
     * An optional `className` to attach to the wrapper.
     */
    readonly className?: string;
    /**
     * Current value
     */
    readonly value: any;
    /**
     * Called when new value is selected. Returns an id of the activated button
     */
    readonly onSelect: (value: any) => ButtonGroupItemId;
    /**
     * The contents to be rendered within the `Bar`.
     */
    readonly children: ReadonlyArray<React.ReactElement<any>>;
    /**
     * An optional css theme to be injected.
     */
    readonly theme?: ButtonGroupTheme;
}
declare class ButtonGroup extends PureComponent<ButtonGroupProps> {
    render(): JSX.Element;
}
export default ButtonGroup;