PDFView and PDFThumbnailView in applescript objc

I can do this in the old Applescript Studio - call a pdf into a view but I"m struggling in ApplescriptObjc. How do you call a pdf into a PDFView and link the PDFView to a PDFThumbnailView?

You put a PDF in a PDFView using setDocument_, and you link a PDFThumbnailView to a view using it’s setPDFView_ method.