toJson method

Implementation

core.Map<core.String, core.dynamic> toJson() {
  final bookDisplayNumber = this.bookDisplayNumber;
  final kind = this.kind;
  final shortSeriesBookTitle = this.shortSeriesBookTitle;
  final volumeSeries = this.volumeSeries;
  return {
    'bookDisplayNumber': ?bookDisplayNumber,
    'kind': ?kind,
    'shortSeriesBookTitle': ?shortSeriesBookTitle,
    'volumeSeries': ?volumeSeries,
  };
}