CNN "Tests" argument not exist

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Command: python SinfNet.py --cnn_train NETWORK TRAIN TESTS example python SinfNet.py -ct CNN ./dataset/Augmented ./dataset/Original_Images

def CNN(network='VGG16', choice='predict', weights='weights.h5',
	Train ='./dataset', prediction='./image.jpg'):
	''' Train images using one of several CNNs '''

CNN dataset Nematodes\Nematodes\Train set
Traceback (most recent call last):
  File "C:\Users\doutor\Documents\SinfNet\SinfNet.py", line 170, in <module>
    if __name__ == '__main__': main()
  File "C:\Users\doutor\Documents\SinfNet\SinfNet.py", line 111, in main    
    CNN.CNN(network=sys.argv[2],
TypeError: CNN() got an unexpected keyword argument 'Tests'