```
epriestley@orbital ~/dev/phabricator $ ./bin/config set files.image-mime-types true
Usage Exception: Config key 'files.image-mime-types' is of type 'set'. Specify it in JSON. For example:
./bin/config set '{"value1": true, "value2": true}'
epriestley@orbital ~/dev/phabricator $ ./bin/config set cluster.addresses true
Usage Exception: Config key 'cluster.addresses' is of type 'list<string>'. Specify it in JSON. For example:
./bin/config set '["a", "b", "c"]'
epriestley@orbital ~/dev/phabricator $
```