toJson method
Implementation
@override
Map<String, dynamic> toJson() {
final json = <String, dynamic>{'type': integer ? 'integer' : 'number'};
if (title != null) json['title'] = title;
if (description != null) json['description'] = description;
if (minimum != null) json['minimum'] = minimum;
if (maximum != null) json['maximum'] = maximum;
if (defaultValue != null) json['default'] = defaultValue;
return json;
}