Function introspect 

pub(in generators) fn introspect() -> Result<Vec<ModuleSurface>, Error>

Reads the four native surfaces and the inline-typed Python adapter.

Errors

crate::error::Error::Unclassifiable for anything the embedded interpreter cannot be made to describe: a module that will not import, a missing __all__, a callable with no __text_signature__, a special method there is no rule for.