* `benchmark` - turns on benchmarking mode measuring time spent on cleaning up (run `npm run bench` to see example)
* `compatibility` - enables compatibility mode, see [below for more examples](#how-to-set-compatibility-mode)
* `debug` - set to true to get minification statistics under `stats` property (see `test/custom-test.js` for examples)
-* `inliner` - a hash of options for `@import` inliner, see test/protocol-imports-test.js for examples
+* `inliner` - a hash of options for `@import` inliner, see [test/protocol-imports-test.js](https://github.com/jakubpawlowicz/clean-css/blob/master/test/protocol-imports-test.js#L372) for examples, or [this comment](https://github.com/jakubpawlowicz/clean-css/issues/612#issuecomment-119594185) for a proxy use case.
* `keepBreaks` - whether to keep line breaks (default is false)
* `keepSpecialComments` - `*` for keeping all (default), `1` for keeping first one only, `0` for removing all
* `mediaMerging` - whether to merge `@media` blocks (default is true)