code: public static function getTypes()
      {
          return [
              self::TYPE_WEBSITE,
              self::TYPE_USER,
              self::TYPE_ADMINISTRATOR,
              self::TYPE_IN_CHARGE,
              self::TYPE_CUSTOMER,
              self::TYPE_SALESMAN,
              self::TYPE_ACCOUNTABLE,
              self::TYPE_SUPPLIER,
          ];
      }
docs: Returns the valid types.
  
  @return array