RacEnumToIntNative typedef
rac_inference_framework_t rac_model_category_default_framework( rac_model_category_t) and
rac_bool_t rac_model_category_requires_context_length( rac_model_category_t) — int-enum in, int out.
Implementation
typedef RacEnumToIntNative = ffi.Int32 Function(ffi.Int32);