pub fn grad_with_argnums<'a, F, Args, Output, Err>(
f: F,
argnums: impl IntoOption<&'a [i32]>,
) -> impl FnMut(Args) -> Result<Output> + 'awhere
F: IntoGrad<'a, Args, Output, Err>,Expand description
Returns a function which computes the gradient of f.
See also grad for a version that uses the default argument numbers
&[0].