if ifModifiedSinceHeader != "" {
		if givenTime, err := amztime.ParseHeader(ifModifiedSinceHeader); err == nil {
			r.IfModifiedSince = &givenTime
		}
	}
	ifUnmodifiedSinceHeader := header.Get(xhttp.IfUnmodifiedSince)
	if ifUnmodifiedSinceHeader != "" {
		if givenTime, err := amztime.ParseHeader(ifUnmodifiedSinceHeader); err == nil {
			r.IfUnModifiedSince = &givenTime
		}
	}

    public static final String LABELS_user_given_name = "{labels.user_given_name}";

    /** The key of the message: First Name */
    public static final String LABELS_GIVEN_NAME = "{labels.givenName}";

    /** The key of the message: Last Name */
    public static final String LABELS_user_surname = "{labels.user_surname}";

    /** The key of the message: Last Name */