toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (dateString != null)
'dateString': dateString!
.map((value) =>
"${value.year.toString().padLeft(4, '0')}-${value.month.toString().padLeft(2, '0')}-${value.day.toString().padLeft(2, '0')}")
.toList(),
if (id != null) 'id': id!,
if (integer != null) 'integer': integer!,
if (kind != null) 'kind': kind!,
if (selection != null) 'selection': selection!,
if (text != null) 'text': text!,
if (user != null) 'user': user!,
if (valueType != null) 'valueType': valueType!,
};