usestd::collections::BTreeMap;usestd::error::Error;usestd::fmt;// Lexical partitions retain one module-private invariant surface while keeping
// each source unit reviewable under the repository size policy.
include!("managed/handles.rs");include!("managed/edges.rs");include!("managed/object.rs");include!("managed/arena_model.rs");include!("managed/arena.rs");