You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: columns.go
    path of file: ./repos/sqlboiler/boil
    
    the code of the file until where you have to start completion: package boil

import (
	"github.com/volatiletech/strmangle"
)

// Columns kinds
// Note: The
    
func (c Columns) UpdateColumnSet(allColumns, pkeyCols []string) []string {
	switch c.Kind {
	case columnsNone:
		return nil
	case columnsInfer:
		return strmangle.SetComplement(allColumns, pkeyCols)
	case columnsWhitelist:
		return c.Cols
	case columnsBlacklist:
		return strmangle.SetComplement(strmangle.SetComplement(allColumns, pkeyCols), c.Cols)
	case columnsGreylist:
		// okay to modify return of SetComplement since it's a new slice
		update := append(strmangle.SetComplement(allColumns, pkeyCols), c.Cols...)
		return strmangle.SortByKeys(allColumns, update)
	default:
		panic("not a real column list kind")
	}
}