import type { OptionValueFormat } from './types.js';
/** Encodes an enum option value into a string for a DOM value attribute.
 *
 * When `format` is `'realValue'`, primitive values are converted via `String()`.
 * Non-primitive values (objects, arrays) fall back to the index since
 * `String()` would produce `"[object Object]"`.
 *
 * When `format` is `'indexed'` (the default), returns the index as a string.
 *
 * @param value - The typed enum value
 * @param index - The option's position in the enumOptions array
 * @param [format='indexed'] - How to encode the value for the DOM attribute
 * @returns The string to use as the DOM value attribute
 */
export default function enumOptionValueEncoder(value: unknown, index: number, format?: OptionValueFormat): string;