if path == "" {
		return "", nil
	}
	data, err := os.ReadFile(path)
	if err != nil {
		return "", err
	}
	return string(data), nil
}

func getTokenFromServer(t *testing.T, p *GCEPlugin, callReps int) ([]string, []error) {
	t.Helper()
	var tokens []string
	var errs []error
	for i := 0; i < callReps; i++ {
		token, err := p.GetPlatformCredential()