/**
 * Serialize a value for the `data-value` attribute consumed by QA automation.
 *
 * null/undefined/empty-string → ''.
 * Date → ISO string.
 * Array / object → JSON.stringify, '' on failure (circular refs).
 * Primitives → String().
 */
declare function sdSerializeDataValue(value: unknown): string;
/** True when the value should drive `data-empty="true"` on a form control. */
declare function sdIsEmpty(value: unknown): boolean;

export { sdIsEmpty, sdSerializeDataValue };