code: def GetSourceStrings(cls, event):
      
      # TODO: change this to return the long variant first so it is consistent
      # with GetMessageStrings.
      formatter_object = cls.GetFormatterObject(event.data_type)
      return formatter_object.GetSources(event)
docs: Retrieves the formatted source strings for a specific event object.
  
      Args:
        event (EventObject): event.
  
      Returns:
        list[str, str]: short and long version of the source of the event.