docs: def get_version_name(version_id):
      """
      Get the name of a protocol version by the internal version ID.
  
      :param Integer version_id: Internal protocol version ID
      :return: Name of the version
      :rtype: String
      """
      ver = registry.version_info.get(version_id)
      if ver:
          return ver.name
  
      return 'unknown'