Whether CarPlay framework is available for Objective C ?

I have a test like below.

1. If using Swift: import CarPlay can works.

2. If using Objective C: #import <CarPlay.h> will not work. (I have include the framework from project)

So does it means that from Objective C, we can not using CarPlay framework and its API such as: CarPlaySceneDelegate, CPListItem, etc.

Thanks very much.