pub(crate) fn select_items_for_interaction(
slots: &[FactorialSlot],
main_effects: &[MainEffectEstimate],
top_k: usize,
) -> Vec<Vec<u32>>pub(crate) fn select_items_for_interaction(
slots: &[FactorialSlot],
main_effects: &[MainEffectEstimate],
top_k: usize,
) -> Vec<Vec<u32>>