toJson method

Implementation

@override
Map<String, dynamic> toJson() {
  final json = super.toJson();
  addWhenNotNull(json, "taker_gets", takerGets.toJson());
  addWhenNotNull(json, "taker_pays", takerPays.toJson());
  addWhenNotNull(json, "expiration", expiration);
  addWhenNotNull(json, "offer_sequence", offerSequence);
  return json;
}