def _decode(self, bytes):
        if self.maxSize is not None:
            if len(bytes) > self.maxSize:
                errStr = (self.maxSize) % "COctetString is longer than allowed maximum size (%d)"
                raise self.decodeErrorClass(errStr, self.decodeErrorStatus)
        return bytes[:-1]
dataset/ETHPy150Open jookies/jasmin/jasmin/vendor/smpp/pdu/pdu_encoding.py/COctetStringEncoder._decode/swapped operands of `%`