pub unsafe extern "C" fn atg__slow_conv2d_backward(
out__: *mut *mut C_tensor,
grad_input_: *mut C_tensor,
grad_weight_: *mut C_tensor,
grad_bias_: *mut C_tensor,
grad_output_: *mut C_tensor,
self_: *mut C_tensor,
weight_: *mut C_tensor,
kernel_size_data: *const i64,
kernel_size_len: c_int,
stride_data: *const i64,
stride_len: c_int,
padding_data: *const i64,
padding_len: c_int,
)