How to use the ledgerblue.commU2F.U2FHIDError function in ledgerblue

def _read_resp(self, cid, cmd):
        resp = b'.'
        header = cid + int2byte(TYPE_INIT | cmd)
        while resp and resp[:5] != header:
            # allow for timeout
            resp_vals = _read_timeout(self.handle, HID_RPT_SIZE)
            resp = b''.join(int2byte(v) for v in resp_vals)
            if resp[:5] == cid + int2byte(STAT_ERR):
                raise U2FHIDError(byte2int(resp[7]))

        if not resp:
            raise exc.DeviceError("Invalid response from device!")

        data_len = (byte2int(resp[5]) << 8) + byte2int(resp[6])
        data = resp[7:min(7 + data_len, HID_RPT_SIZE)]
        data_len -= len(data)

        seq = 0
        while data_len > 0:
            resp_vals = _read_timeout(self.handle, HID_RPT_SIZE)
            resp = b''.join(int2byte(v) for v in resp_vals)
            if resp[:4] != cid:
                raise exc.DeviceError("Wrong CID from device!")
            if byte2int(resp[4:5]) != seq & 0x7f:
                raise exc.DeviceError("Wrong SEQ from device!")