//! `IfcMaterialConstituentSet` for non-layered composites.
//!
//! ## Internal split
//!
//! - `definition.rs`: constituent semantics.
//! - `set.rs`: set membership.
mod definition;
mod set;
pub use definition::MaterialConstituent;
pub use set::{ConstituentFractionDiagnostic, MaterialConstituentSet};