var amzDateFormats = []string{
	// Do not change this order, x-amz-date format is usually in
	// iso8601Format rest are meant for relaxed handling of other
	// odd SDKs that might be out there.
	"20060102T150405Z",
	time.RFC1123,
	time.RFC1123Z,
	// Add new AMZ date formats here.
}

// ErrMalformedDate always returned for dates that cannot be parsed.
var ErrMalformedDate = errors.New("malformed date")

			req.Form = url.Values{"lambdaArn": []string{lambdaARN}}
			req.Header.Set("Host", "localhost")
			req.Header.Set("X-Amz-Date", time.Now().UTC().Format("20060102T150405Z"))
			sum := sha256.Sum256(body)
			req.Header.Set("X-Amz-Content-Sha256", hex.EncodeToString(sum[:]))
			req = signer.SignV4(*req, credentials.AccessKey, credentials.SecretKey, "", "us-east-1")

)

func sendHealthInfo(ctx context.Context, healthInfo madmin.HealthInfo) error {
	url := globalSubnetConfig.BaseURL + subnetHealthPath

	filename := fmt.Sprintf("health_%s.json.gz", UTCNow().Format("20060102150405"))
	url += "?filename=" + filename

	_, err := globalSubnetConfig.Upload(url, filename, createHealthJSONGzip(ctx, healthInfo))
	return err
}

	switch {
	case *keyHex != "":
		// Backup any already existing output file
		_, err := os.Stat(outputFileName)
		if err == nil {
			err := os.Rename(outputFileName, outputFileName+"."+time.Now().Format("20060102150405"))
			if err != nil {
				fatalErr(err)
			}
		}
		output, err := os.Create(outputFileName)
		fatalErr(err)
		msg := fmt.Sprintf("output written to %s", outputFileName)