code: public static function get(string $name) : array
      {
          if (isset(self::$mappings[$name]) === false) {
              throw new MappingNotFound('there\'s no registered mapping with name "' . $name . '"');
          }
  
          return self::$mappings[$name];
      }
docs: Get the mapping data.
  
  @throws MappingNotFound if there's no registered mapping for specified database
  @param  string          $name mapping name
  @return array           mapping data