pub unsafe extern "C" fn mlx_closure_value_and_grad_new_func(
fun: Option<unsafe extern "C" fn(arg1: *mut mlx_vector_array, arg2: *mut mlx_vector_array, arg3: mlx_vector_array) -> c_int>,
) -> mlx_closure_value_and_gradpub unsafe extern "C" fn mlx_closure_value_and_grad_new_func(
fun: Option<unsafe extern "C" fn(arg1: *mut mlx_vector_array, arg2: *mut mlx_vector_array, arg3: mlx_vector_array) -> c_int>,
) -> mlx_closure_value_and_grad