//! Emit the default `units.json`, so a project template — or an existing
//! machine being migrated — can be seeded with:
//!//! ```text
//! cargo run --example print_default_units > <project>/units.json
//! ```
fnmain(){let u =mechutil::units::default_units();println!("{}",serde_json::to_string_pretty(&u).unwrap());}