import { ValueReference } from './index.js';
import { NativeAttributeValue } from '@aws-sdk/lib-dynamodb';

/**
 * Creates a reference to another attribute's value.
 *
 * @param attributePath - The path of the attribute to reference.
 * @param defaultTo - An optional default value if the referenced attribute does not exist.
 */
declare function ref(attributePath: string, defaultTo?: NativeAttributeValue): ValueReference;

export { ref };