Function robustness_test 

pub fn robustness_test<M, F>(
    model: &M,
    x: &ArrayView2<'_, f64>,
    y: &ArrayView1<'_, f64>,
    noise_configs: Vec<NoiseConfig>,
    eval_fn: F,
) -> Result<Vec<RobustnessTestResult>>
where
    M: Clone,
    F: Fn(&M, &ArrayView2<'_, f64>, &ArrayView1<'_, f64>) -> f64 + Copy,