save ndarray shape information into bytes refer to https://stackoverflow.com/a/61838233/4095689
load python object from a pickle file
save python object to a pickle file
Example:
# save a dict to file dic = dict(a=1, b=2) save_pkl(dic, "dic.pkl") print(load_pkl("dic.pkl"))
object – the python object to be saved.
path – target path.