Test case:
Native Only, Multisize (300x250, 320x50), GDN creative
Expected:
Creative: Native (Content Ad) [300x250, 320x50],
Native (App Install) [300x250, 320x50]
Presentation: P301 / P302 / P303 / P304
Native Only, Multisize (300x250, 320x50), GDN creative
Expected:
Creative: Native (Content Ad) [300x250, 320x50],
Native (App Install) [300x250, 320x50]
Presentation: P301 / P302 / P303 / P304