pub unsafe extern "C" fn atg_nll_loss2d_backward(
out__: *mut *mut C_tensor,
grad_output_: *mut C_tensor,
self_: *mut C_tensor,
target_: *mut C_tensor,
weight_: *mut C_tensor,
reduction_: i64,
ignore_index_: i64,
total_weight_: *mut C_tensor,
)