All sibling family dirs (`encoders/`, `pipelines/`, `transformers/`, `vaes/`, `sd35/`) ship an `__init__.py`. Z-Image was the only port-in- progress dir missing one; conftest setups that walk packages will skip the dir without it.
Tests
tests/local_tests/holds local-only parity, smoke, and component tests organized by model family (e.g.tests/local_tests/ltx2/,tests/local_tests/stable_audio/). They typically require a checked-out reference repo and/or model weights and are skipped in CI; see each family'sREADME.mdfor setup. The top-leveltests/local_tests/README.mdis the family index.- The CI-backed test suite still lives in
fastvideo/tests/. - Eventually, all tests will move under
tests/.