pub unsafe extern "C" fn atg__ctc_loss_backward_tensor(
    out__: *mut *mut C_tensor,
    grad_: *mut C_tensor,
    log_probs_: *mut C_tensor,
    targets_: *mut C_tensor,
    input_lengths_: *mut C_tensor,
    target_lengths_: *mut C_tensor,
    neg_log_likelihood_: *mut C_tensor,
    log_alpha_: *mut C_tensor,
    blank_: i64,
    zero_infinity_: c_int
)