Error trying examples

[vilyansky]

I have a error during store_finger_print.py executing:
./store_finger_print.py /dev/ttyUSB0 57600
Traceback (most recent call last):
File "./store_finger_print.py", line 12, in <module>
result = dev.SearchFingerPrint()
File "/home/super_pypsik/work/projects/imx/python-R305-master/device.py", line 473, in SearchFingerPrint
finger_on_sensor = self.GenImg()
File "/home/super_pypsik/work/projects/imx/python-R305-master/device.py", line 185, in GenImg
data = getHeader('GenImg')
File "/home/super_pypsik/work/projects/imx/python-R305-master/device.py", line 19, in getHeader
if command in instruction:
NameError: name 'instruction' is not defined