How to use the sdgym.synthesizers.ctgan.Discriminator function in sdgym

def __init__(self, input_dim, dis_dims, pack=10):
        super(Discriminator, self).__init__()
        dim = input_dim * pack
        self.pack = pack
        self.packdim = dim
        seq = []
        for item in list(dis_dims):
            seq += [
                Linear(dim, item),
                LeakyReLU(0.2),
                Dropout(0.5)
            ]
            dim = item
        seq += [Linear(dim, 1)]
        self.seq = Sequential(*seq)