You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: setting.rb
    path of file: ./repos/forem/app/models/users
    
    the code of the file until where you have to start completion: module Users
  #  @note Wh
    
    def validate_feed_url
      return if feed_url.blank?

      valid = Feeds::ValidateUrl.call(feed_url)

      errors.add(:feed_url, I18n.t("models.users.setting.invalid_rss")) unless valid
    rescue StandardError => e
      errors.add(:feed_url, e.message)
    end