Function rpo_config 

pub fn rpo_config(
    params: PcsParams,
) -> GenericStarkConfig<Felt, BinomialExtensionField<Felt, 2>, LmcsConfig<<Felt as Field>::Packing, <Felt as Field>::Packing, StatefulSponge<RpoPermutation256, miden_air::::config::AlgLmcs::{constant#0}, miden_air::::config::AlgLmcs::{constant#1}, miden_air::::config::AlgLmcs::{constant#2}>, TruncatedPermutation<RpoPermutation256, miden_air::::config::AlgLmcs::{constant#3}, miden_air::::config::AlgLmcs::{constant#4}, miden_air::::config::AlgLmcs::{constant#5}>, miden_air::::config::AlgLmcs::{constant#6}, miden_air::::config::AlgLmcs::{constant#7}>, Radix2DitParallel<Felt>, DuplexChallenger<Felt, RpoPermutation256, miden_air::::config::AlgChallenger::{constant#0}, miden_air::::config::AlgChallenger::{constant#1}>>

Creates an RPO-based STARK configuration.