import React from 'react';
import { ToggleButtonGroupProps } from '@material-ui/lab';
declare type VeryOpenRefType = ((instance: unknown) => void) | React.MutableRefObject<unknown> | null;
declare const ToggleButtonGroup: React.ElementType<ToggleButtonGroupProps & {
    ref?: VeryOpenRefType;
}>;
export { ToggleButtonGroup };