toJson method

Implementation

core.Map<core.String, core.dynamic> toJson() {
  final issue = this.issue;
  final orderNumber = this.orderNumber;
  final seriesBookType = this.seriesBookType;
  final seriesId = this.seriesId;
  return {
    'issue': ?issue,
    'orderNumber': ?orderNumber,
    'seriesBookType': ?seriesBookType,
    'seriesId': ?seriesId,
  };
}