code: def get_event_description(event_type, event_code):
      
      description = 'Unknown'
      lookup_map = LRR_TYPE_MAP.get(event_type, None)
  
      if lookup_map is not None:
          description = lookup_map.get(event_code, description)
  
      return description
docs: Retrieves the human-readable description of an LRR event.
  
      :param event_type: Base LRR event type.  Use LRR_EVENT_TYPE.*
      :type event_type: int
      :param event_code: LRR event code
      :type event_code: int
  
      :returns: string