buildPassword method 
    
    
    
  Implementation
  Widget buildPassword(
  String key,
  TextEditingController controller,
  Function(String?) onChanged,
  String? Function(String?) validator,
) {
  var inputDecoration =
      options.inputDecorationField?[key] ?? options.inputDecoration;
  return FlutterFormInputPassword(
    controller: controller,
    style: options.inputTextStyle,
    decoration: inputDecoration,
    onChanged: onChanged,
    enabled: !options.readOnly,
    validator: (value) =>
        validator(value) ?? options.validators?[key]?.call(value),
  );
}