toJson method
Implementation
Map<String, dynamic> toJson() => {
'type': type,
'title': title,
'description': description,
if (required != null) 'required': required,
if (defaultValue != null) 'default': defaultValue,
if (multiple != null) 'multiple': multiple,
if (sensitive != null) 'sensitive': sensitive,
if (min != null) 'min': min,
if (max != null) 'max': max,
};