pub unsafe extern "C" fn atg_lstm_cell( out__: *mut *mut C_tensor, input_: *mut C_tensor, hx_data: *const *mut C_tensor, hx_len: c_int, w_ih_: *mut C_tensor, w_hh_: *mut C_tensor, b_ih_: *mut C_tensor, b_hh_: *mut C_tensor)