public static string username(this SecretData secretData, string credentialType)
 {
     return(secretData.username(credentialType, 0));
 }
 public static string username(this SecretData secretData, int index)
 {
     return(secretData.username("", index));
 }
        //#endregion

        // #region username

        public static string username(this SecretData secretData)
        {
            return(secretData.username("", 0));
        }