/**
  * Save the form.
  *
  * @param FormBuilder|ConfigurationFormBuilder $builder
  * @return bool|mixed
  */
 public function save(FormBuilder $builder)
 {
     $namespace = $builder->getFormEntry() . '::';
     /* @var FieldType $field */
     foreach ($builder->getFormFields() as $field) {
         $this->configurations->set($namespace . $field->getField(), $builder->getScope(), $builder->getFormValue($field->getInputName()));
     }
 }