ManagedSettingsStore&socialStore.shield

when i watch the video (https://developer.apple.com/videos/play/wwdc2022/110336/) i find the code

let socialStore = ManagedSettingsStore(named: .social)
 let socialCategory = database.socialCategoryToken
 socialStore.shield.applicationCategories = .specific([socialCategory])

i try to find ManagedSettingsStore shield and specific([socialCategory]) i Documentation , but i failed. who can tell me wher i can find about ManagedSettingsStore shield or specific([socialCategory]) ? thanks a lot.

ManagedSettingsStore&socialStore.shield
 
 
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