//! `IfcMaterial` and material properties.
//!
//! ## Internal split
//!
//! - `definition.rs`: IfcMaterial identity.
//! - `properties.rs`: material property relationships.
//! ## Internal split
//!
//! - `relationships.rs`: material lists, classifications, and
//! resource-level relationships.
pub use Material;
pub use MaterialProperties;
pub use ;