//! The hierarchy, stored as offset tables rather than nested collections.
//!
//! Models contain chains, chains contain residues, residues contain atoms. Each
//! table records where its first child sits and how many children follow, and
//! because children are contiguous, a parent's children are a range. Finding the
//! atoms of a residue is then two loads and an addition — no pointer chasing, no
//! search, and no allocation per residue.
pub use ;
pub use ;
pub use ;
pub use Topology;
pub use ModelTable;
pub use ;