pub unsafe extern "C" fn ggml_opt_grad_acc(
opt_ctx: ggml_opt_context_t,
node: *mut ggml_tensor,
) -> *mut ggml_tensorpub unsafe extern "C" fn ggml_opt_grad_acc(
opt_ctx: ggml_opt_context_t,
node: *mut ggml_tensor,
) -> *mut ggml_tensor