vm/op.go
func (o op) ArgString() string {
	// In most cases we do this because it's a sring
	if v, ok := o.uArg.(string); ok {
		return v
	}
	return interfaceToString(o.uArg)
}
func (o op) ArgString() string {
	// In most cases we do this because it's a sring
	if v, ok := o.uArg.(string); ok {
		return v
	}
	return interfaceToString(o.uArg)
}
// ArgString returns the string representatin of the argument