import type { OneOrMany } from './types.ts';
/**
 * Get or set `data-*` attributes on one or more elements.
 * Uses the native `dataset` API for camelCase key access.
 *
 * @example
 *     data(el, { userId: '123', role: 'admin' });
 *     data(el, 'userId');              // → '123'
 *     data(el, ['userId', 'role']);     // → { userId: '123', role: 'admin' }
 *     data.remove(el, 'userId');
 */
declare function data(els: OneOrMany<HTMLElement>, props: Record<string, string>): void;
declare function data(el: HTMLElement, key: string): string | undefined;
declare function data(el: HTMLElement, keys: string[]): Record<string, string | undefined>;
declare namespace data {
    var remove: (els: OneOrMany<HTMLElement>, keys: string | string[]) => void;
}
export { data };