pub fn evaluate_ring_switch_eq_ind<FS, F, Backend>(
    eval_point: &[F],
    sumcheck_challenges: &[F],
    mixing_challenges: &[F],
    backend: Backend
) -> F
where FS: Field, F: ExtensionField<FS> + PackedField<Scalar = F> + PackedExtension<FS>, Backend: ComputationBackend,