These should be aligned by the longest argument name of this block, sorry if I added confusion earlier.

E.g. this should be

```objc
// Attempts to parse an array of JSON dictionary objects into a model objects
// of a specific class.
//
// modelClass - The MTLModel subclass to attempt to parse from the JSON.
//              This class must conform to <MTLJSONSerializing>. This argument
//              must not be nil.
// JSONArray  - A array of dictionaries representing JSON data. This should
//              match the format returned by NSJSONSerialization. If this
//              argument is nil, the method returns nil.
// error      - If not NULL, this may be set to an error that occurs during
//              parsing or initializing an any of the instances of
//              `modelClass`.
//
// Returns an array of `modelClass` instances upon success, or nil if a parsing
// error occurred.
```