Macro export_mod 

macro_rules! export_mod {
    ($mod_ty:ty) => { ... };
}

Export a Mod as a dynamically loadable Yog mod.

Generates the two C-ABI entry points the runtime looks up:

• yog_abi_version() -> u32 — version check before loading
• yog_mod_register(*const YogApi, *mut c_void) — registration entry point

Put this once at the crate root of a cdylib mod:

yog_api::export_mod!(MyMod);