code: function Message($, rule_id, options) {
  
      var rule = new ruleValidator($, rule_id, options),
          message = '';
  
      if ( typeof rule.valid === 'boolean' && !rule.valid ) {
          message = typeof rule.rule.message == 'function' ? rule.rule.message(options) : rule.rule.message;
      }
  
      this.text = message;
  }
docs: Constructor
  @method Message
  @param  {Object} rule object
  @param  {Object} options options for bem-naming
  @constructor