code: func (h *HumanReadablePrinter) DefaultTableHandler(columnDefinitions []metav1beta1.TableColumnDefinition, printFunc interface{}) error {
  	printFuncValue := reflect.ValueOf(printFunc)
  	if err := ValidateRowPrintHandlerFunc(printFuncValue); err != nil {
  		utilruntime.HandleError(fmt.Errorf("unable to register print function: %v", err))
  		return err
  	}
  	entry := &handlerEntry{
  		columnDefinitions: columnDefinitions,
  		printFunc:         printFuncValue,
  	}
  
  	h.defaultHandler = entry
  	return nil
  }
docs: // DefaultTableHandler registers a set of columns and a print func that is given a chance to process
  // any object without an explicit handler. Only the most recently set print handler is used.
  // See ValidateRowPrintHandlerFunc for required method signature.