could not find correct data

Hi, thanks for your codes! I have a little question concerning your code in JPY_WINDOW=5_DAYS=30.ipynb, the code is:
x = np.load('data/x.npy')
y = np.load('data/y.npy')
but you provided a HDF5 file in data. and I could find lots of keys in HDF5 file and could not determine which should be x and y. Could you give me some hint?