return false, azureToObjectError(err, az.Bucket, az.Prefix)
	}
	if len(resp.Segment.BlobPrefixes) > 0 || len(resp.Segment.BlobItems) > 0 {
		return true, nil
	}
	return false, nil
}

func newCredentialFromSP(conf madmin.TierAzure) (azblob.Credential, error) {
	oauthConfig, err := adal.NewOAuthConfig(azure.PublicCloud.ActiveDirectoryEndpoint, conf.SPAuth.TenantID)
	if err != nil {
		return nil, err
	}