func getAWSKeys() (keys s3gof3r.Keys, err error) {

	keys, err = s3gof3r.EnvKeys()
	if err == nil {
		return
	}
	keys, err = s3gof3r.InstanceKeys()
	if err == nil {
		return
	}
	err = errors.New("no AWS keys found")
	return
}
func getAWSKeys() (keys s3gof3r.Keys, err error) {

	keys, err = s3gof3r.EnvKeys()
	if err == nil {
		return
	}
	keys, err = s3gof3r.InstanceKeys()
	if err == nil {
		return
	}
	err = errors.New("no AWS keys found")
	return
}
// getAWSKeys gets the AWS Keys from environment variables or the instance-based metadata on EC2
// Environment variables are attempted first, followed by the instance-based credentials.