func SetStringPtr(d *schema.ResourceData, key string, val *string) error {
	if val == nil {
		return nil
	}
	err := d.Set(key, val)
	return err
}
func SetStringPtr(d *schema.ResourceData, key string, val *string) error {
	if val == nil {
		return nil
	}
	err := d.Set(key, val)
	return err
}
// SetStringPtr sets a ResourceData field depending on if a *string exists or
// not.  The field is not set if it's nil.