//! Domain types and traits for hierarchical navigation.
//!
//! No Arrow, no network, no framework dependency.
//! Compiles on `wasm32-unknown-unknown` and native alike.
/// Declarative node filtering.
/// Node domain model and wire-format view.
/// Hierarchical node identifiers.
/// Topology provider trait and built-in implementations.
pub use NodeFilter;
pub use ;
pub use NodeId;
pub use ;