//! Online normalization utilities for observations and rewards.
//!
//! * [`crate::normalize::RunningStats`] — Welford online mean/variance tracker
//! * [`crate::normalize::ObservationNormalizer`] — Observation normalizer
//! * [`crate::normalize::RewardNormalizer`] — Reward normalizer and clipper
pub use ObservationNormalizer;
pub use RewardNormalizer;
pub use RunningStats;