import * as React from 'react';
/**
 * @internal Warns in dev when a card root contains a focusable descendant that is not its own Control.
 * @param family the card family's name, so the message says which card is wrong
 * @param rootRef the card root `<label>`
 */
export declare function useCardNestingWarning(family: 'CheckboxCard' | 'RadioCard', rootRef: React.RefObject<HTMLElement | null>): void;