/**
 * Writes a value through own properties while creating only plain objects.
 *
 * @param targetValues - Plain object that will own the collected form values.
 * @param fieldPath - Validated dot-separated field path.
 * @param fieldValue - Value to assign at the final segment.
 * @throws TypeError when an existing intermediate value is not a plain object.
 */
export declare function setPathValue(targetValues: Record<string, unknown>, fieldPath: string, fieldValue: unknown): void;