toJson method

Implementation

core.Map<core.String, core.dynamic> toJson() {
  final endTime = this.endTime;
  final graceEndTime = this.graceEndTime;
  final startTime = this.startTime;
  final upgradeTime = this.upgradeTime;
  return {
    'endTime': ?endTime,
    'graceEndTime': ?graceEndTime,
    'startTime': ?startTime,
    'upgradeTime': ?upgradeTime,
  };
}