internal: Fix a severe bug with the file-system wrappers on OSX. `os.walk` is expected to support modifying its return values `dirnames` and `filenames` so that you can filter out items that need to be iterated upon. I was previously returning a different list in the wrappers, which means filtering was completely broken.

---
title: Plugin Components
---

Once you've [created a plugin][1], you need to make it provide new _components_.

{% for comp in family.children -%}
* [{{comp.title}}]({{comp.url}})
{% endfor %}

[1]: {{apiurl('plugins')}}