toJson method

Implementation

@override
Object toJson() {
  return {
    if (checkpointId.isNotDefault) 'checkpointId': checkpointId,
    if (epoch.isNotDefault) 'epoch': encodeInt64(epoch),
    if (step.isNotDefault) 'step': encodeInt64(step),
    if (endpoint.isNotDefault) 'endpoint': endpoint,
  };
}