Split UICollectionView & UICollectionViewDataSource shows black screen

I'm starting a new project with a collection view that will be downloading a lot of data from a REST api. I've split the collection view and datasource into two files, but when I run the application, all I get is a black screen. I've seen a few questions and tried changing the background, adding the collection view as a subview, and nothing seems to be working. I don't run into any errors and the debug view hierarchy and the views are listed (back to front) as UIWindoW -> MainSearchVC -> UICollectionView.I'm starting a new project with a collection vi