Wasm modules are too low-level to be consumed at compile time directly. You would need some high-level metadata additionally. This can be .h header file for C ABI, .d.ts file for JS API, or adapter module for Interface Types.
I think we will want to support for C ABI (and IT) in the future, but initially we are focused on JS interop. It would make sense to make it as compatible to K/N as possible, but we haven’t looked at it closely yet.