Fastcore

New Features

- Optional types for `Config` ([472](https://github.com/fastai/fastcore/issues/472))
- Add `ret_false()`

Bugs Squashed

- `docments` using nested delegates comments incorrectly ([475](https://github.com/fastai/fastcore/issues/475))
- `true()` defined twice; replace 2nd with `ret_true()` ([471](https://github.com/fastai/fastcore/issues/471))
- 'method-wrapper' object has no attribute '__annotations__' ([470](https://github.com/fastai/fastcore/issues/470))

New Features

- Recursively search for docments ([468](https://github.com/fastai/fastcore/issues/468))
- `delegates()` now works with annotations too ([467](https://github.com/fastai/fastcore/issues/467))

New Features

- exclude `passed to {func}` from docments by passing `verbose=False` to `delegates` ([464](https://github.com/fastai/fastcore/pull/464)), thanks to [seeM](https://github.com/seeM)
- enable meta.delegates to enforce `KEYWORD_ONLY` for kwargs from ([459](https://github.com/fastai/fastcore/pull/459)), thanks to [EmbraceLife](https://github.com/EmbraceLife)

Bugs Squashed

- fix `fastcore.style` format resets and auto-complete ([462](https://github.com/fastai/fastcore/pull/462)), thanks to [seeM](https://github.com/seeM)

New Features

- Add `fastcore.style`: fast styling for friendly CLIs ([460](https://github.com/fastai/fastcore/pull/460)), thanks to [seeM](https://github.com/seeM)
- add `skip_folder` to `xtras.walk` ([458](https://github.com/fastai/fastcore/issues/458))

Bugs Squashed

- Fix scripts not executing ([449](https://github.com/fastai/fastcore/pull/449)), thanks to [renato145](https://github.com/renato145)

New Features

- layered `Config` with `extra_files`; `Config` `repr` ([456](https://github.com/fastai/fastcore/pull/456)), thanks to [seeM](https://github.com/seeM)
- in-memory `Config` by passing `save=False` ([455](https://github.com/fastai/fastcore/pull/455)), thanks to [seeM](https://github.com/seeM)
- use `==` for non iterable args to `all_equal` ([453](https://github.com/fastai/fastcore/issues/453))
- New method: `AttrDict.copy`, to return AttrDict instead of plain python dict ([451](https://github.com/fastai/fastcore/pull/451)), thanks to [Salehbigdeli](https://github.com/Salehbigdeli)
- add xdg module ([450](https://github.com/fastai/fastcore/issues/450))
- add `console_help` ([448](https://github.com/fastai/fastcore/issues/448))
- add module info to `basic_repr` ([447](https://github.com/fastai/fastcore/issues/447))
- add `only` and `nested_setdefault` collection functions ([446](https://github.com/fastai/fastcore/pull/446)), thanks to [seeM](https://github.com/seeM)
- include annotations and qualname in `copy_func` ([425](https://github.com/fastai/fastcore/pull/425)), thanks to [seeM](https://github.com/seeM)

Bugs Squashed

- Fix scripts not executing ([449](https://github.com/fastai/fastcore/pull/449)), thanks to [renato145](https://github.com/renato145)
- urllib opener can conflict with fork parallel on macos ([444](https://github.com/fastai/fastcore/issues/444))

New Features

- move `str2bool` to `fastcore.basics` ([441](https://github.com/fastai/fastcore/issues/441))