import { FC, InputHTMLAttributes, Ref } from 'react';
export interface CheckboxHiddenInputProps extends InputHTMLAttributes<HTMLInputElement> {
    /**
     *  The optional `ref` provides direct access to the underlying
     *  * `<input type="checkbox">` element for advanced use cases such
     *  * as focus management or imperative state inspection.
     */
    ref?: Ref<HTMLInputElement>;
}
/**
 * `CheckboxHiddenInput` is the native form control backing the custom
 * `Checkbox` component.
 *
 * It renders an actual `<input type="checkbox">`, visually hidden from
 * the UI, to preserve native browser behavior such as form submission,
 * keyboard interaction, focus management, and accessibility semantics.
 *
 * The component synchronizes Checkbox state from context with the
 * underlying DOM input, including the special `indeterminate` property,
 * which is applied imperatively via a layout effect.
 *
 * This component acts as the single source of truth for form integration
 * and event handling, while all visual representation is delegated to
 * composable Checkbox subcomponents.
 */
export declare const CheckboxHiddenInput: FC<CheckboxHiddenInputProps>;