How to insert images on Swift UI, Xcode 12

Hi I'm a beginner of Swift and struggling to insert images on Swift UI. I imported my images to Assets.xcassets but apparently only images don't work.

I assume it doesn't belong to any source codes. It only shows blank spaces.

How can I solve these?

https://www.hackingwithswift.com/quick-start/swiftui/how-to-draw-images-using-image-views

How to insert images on Swift UI, Xcode 12
 
 
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