#[test]
fn test_override() {
    let xpriv: GeneratedKey<Xpriv, miniscript::Segwitv0> = Xpriv::generate(()).unwrap();
    let a =  xpriv.into_descriptor_key(None, "m/84h/1h/0h".parse().unwrap()).unwrap();
    let a = a.override_valid_networks(test_networks());
    let secp = SecpCtx::new();
    println!("{}", a.extract(&secp).unwrap().0);
    // [be3917e7/84'/1'/0']xpub6BxR3GaY9SrwFUWTRnmu3qyit4GECypBqNJPycFbFNGLkkh4Bjszb2LGqUbuF1ogEfCTvLo8V3DwPtuqcG4An2h34LQywRmUusRFErevX4L/*
}