29     input: Tensor,
30     hidden: Tuple[Tensor, Tensor],  argument
31     w_ih: Tensor,
32     w_hh: Tensor,
33     b_ih: Tensor,
34     b_hh: Tensor,
53     input: Tensor,
54     hx: Tensor,
55     cx: Tensor,
56     w_ih: Tensor,
57     w_hh: Tensor,
58     b_ih: Tensor,
59     b_hh: Tensor,
77     igates: Tensor,
78     hidden: Tuple[Tensor, Tensor],  argument
79     w_hh: Tensor,
80     b_ih: Tensor,
81     b_hh: Tensor,
100     igates: Tensor, hidden: Tuple[Tensor, Tensor], w_hh: Tensor, b_hh: Tensor  argument