pub unsafe extern "C" fn atg_batch_norm_backward_reduce( out__: *mut *mut C_tensor, grad_out_: *mut C_tensor, input_: *mut C_tensor, mean_: *mut C_tensor, invstd_: *mut C_tensor, weight_: *mut C_tensor, input_g_: c_int, weight_g_: c_int, bias_g_: c_int)