code: func NewNamedRuntimeOpt(name string, ref *map[string]types.Runtime, stockRuntime string) *RuntimeOpt {
  	if ref == nil {
  		ref = &map[string]types.Runtime{}
  	}
  	return &RuntimeOpt{name: name, values: ref, stockRuntimeName: stockRuntime}
  }
docs: // NewNamedRuntimeOpt creates a new RuntimeOpt