toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (choice != null) 'choice': choice!,
if (maxOccurs != null) 'maxOccurs': maxOccurs!,
if (members != null) 'members': members!,
if (minOccurs != null) 'minOccurs': minOccurs!,
if (name != null) 'name': name!,
};