toJson method
Implementation
Map<String, Object?> toJson() => <String, Object?>{
if (!enabled) 'enabled': false,
if (selected != null) 'selected': selected,
if (checked != null) 'checked': checked!.jsonValue,
if (focused) 'focused': true,
if (readOnly) 'readOnly': true,
if (obscured) 'obscured': true,
if (value != null && !obscured) 'value': value,
};