def sanitize!
      self.class.sanitizable_attributes.each do |attr_name|
        cleaned_text = process_text_via_sanitization_method(self.send(attr_name), attr_name)
        self.send((attr_name.to_s + '='), cleaned_text)
      end
    end
def sanitize!
      self.class.sanitizable_attributes.each do |attr_name|
        cleaned_text = process_text_via_sanitization_method(self.send(attr_name), attr_name)
        self.send((attr_name.to_s + '='), cleaned_text)
      end
    end
sanitize! is the method that is called when a model is saved.
 It can be called to manually sanitize attributes.