How do you get mutable dictionaries from AFNetworking and AFJSONRequestOperation?

Question

I'm using JSONKit with AFNetworking's AFHTTPClient (with AFJSONRequestOperation) and I can't seem to figure out how one might trigger the use of the mutableObjectFrom... methods of JSONKit rather than the normal parser methods which return (or arrays of) JKDictionary.

Is this possible without modifying AFNetworking?