/**
  * RFC 4648 Base32 decoding
  *
  * @param $str
  * @return string
  */
 public static function base32DecodeUpper(string $str) : string
 {
     return Base32::decodeUpper($str);
 }
 /**
  * RFC 4648 Base32-Hex decoding
  *
  * "CPNMU===" -> "foo"
  *
  * @param string $str
  * @return string
  */
 public function base32HexDecode(string $str) : string
 {
     return Base32::decodeUpper($str, true);
 }