def __init__(self, num_per_class, num_cl, num_inst, shuffle=True):
    self.num_per_class = num_per_class
    self.num_cl = num_cl
    self.num_inst = num_inst
    self.shuffle = shuffle
def __init__(self, num_per_class, num_cl, num_inst, shuffle=True):
    self.num_per_class = num_per_class
    self.num_cl = num_cl
    self.num_inst = num_inst
    self.shuffle = shuffle