code: def UpdateHuntObject(self, hunt_id, start_time=None, **kwargs):
      
      hunt_obj = self.ReadHuntObject(hunt_id)
  
      delta_suffix = "_delta"
  
      for k, v in kwargs.items():
        if v is None:
          continue
  
        if k.endswith(delta_suffix):
          key = k[:-len(delta_suffix)]
          current_value = getattr(hunt_obj, key)
          setattr(hunt_obj, key, current_value + v)
        else:
          setattr(hunt_obj, k, v)
  
      if start_time is not None:
        hunt_obj.init_start_time = hunt_obj.init_start_time or start_time
        hunt_obj.last_start_time = start_time
  
      hunt_obj.last_update_time = rdfvalue.RDFDatetime.Now()
      self.hunts[hunt_obj.hunt_id] = hunt_obj
docs: Updates the hunt object by applying the update function.