encode<V>  static method 
Implementation
static V encode<V>(
  PaymentLinkRestrictions instance,
  Encoder<V> encoder,
) {
  final container = encoder.container<String>();
  PaymentLinksResourceCompletedSessions.encode(
    instance.completedSessions,
    container.nestedSingleValueContainer('completed_sessions').encoder,
  );
  return container.value;
}