code: func (g *rfc4122Generator) NewV5(ns UUID, name string) UUID {
  	u := newFromHash(sha1.New(), ns, name)
  	u.SetVersion(V5)
  	u.SetVariant(VariantRFC4122)
  
  	return u
  }
docs: // NewV5 returns UUID based on SHA-1 hash of namespace UUID and name.