toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (creationTime != null) 'creationTime': creationTime!,
if (invitationId != null) 'invitationId': invitationId!,
if (invitedEmailAddress != null)
'invitedEmailAddress': invitedEmailAddress!,
if (state != null) 'state': state!,
if (studentId != null) 'studentId': studentId!,
};