toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (actorUserId != null) 'actorUserId': actorUserId!,
if (gradeChangeType != null) 'gradeChangeType': gradeChangeType!,
if (gradeTimestamp != null) 'gradeTimestamp': gradeTimestamp!,
if (maxPoints != null) 'maxPoints': maxPoints!,
if (pointsEarned != null) 'pointsEarned': pointsEarned!,
};