Size of placement. Use sizes for banner ads only.
PlacementSize_Banner320x53
PlacementSize_Banner320x50
PlacementSize_Banner768x90
PlacementSize_Banner300x250
PlacementSize_Banner468x60
PlacementSize_MultiSizeBanner
<RNAatkitBanner
size={RNAatkit.PlacementSize_Banner320x53}
/>
