From reading the code it actually seems to include the code at runtime and evals it through a compiler (or a noop compiler) which doesn't necessarily follow all of our rules (in fact I believe it fails to follow the autocall setting that the original template was compiled with).

Here's the compiled line from a `#include raw 'my_stylesheet.css'`

```python
self._handleCheetahInclude('my_stylesheet.css', trans=trans, includeFrom="file", raw=True)
```