SwiftUI: List onInsert to accept all data types

Hi, I am building a List with a list of files saved in my app. I also want this to accept drops of multiple types of files (images, audio, PDFs, Excel, Pages etc) ... basically anything that be dragged-and-dropped from the iOS system or apps like Mail, iCloud Drive etc. I'm trying to find a good way to handle this.

The best I've come across is adding the onInsert option to accept UTTypes, like this:

List {
...
}
.onInsert(of: [UTType.data], perform: dropAction)

But now I'm not sure how I can load the object that was dropped here. From some examples I've seen, If I registered the UTType.image instead, I could load it in the dropAction handler like this:

item.loadObject(ofClass: UIImage.self) { image, _ in
     DispatchQueue.main.async {
          print("Image type dropped")
     }
}

But how does that work for 'data' types. Or am I supposed to list out all the data types separately?