@class NSArray; @interface CKPinnedConversationActivitySnapshot : NSObject @property (readonly, copy, nonatomic) NSArray *activityItems; @property (readonly, copy, nonatomic) NSArray *contactItems; + (id)emptySnapshot; - (void).cxx_destruct; - (id)_contactItemMatchingIdentifier:(id)a0; - (long long)_contactItemAlignmentForItemAtIndex:(long long)a0 firstItemAlignment:(long long)a1; - (double)_contentScaleForContactItemAtIndex:(long long)a0 withMessageContentScale:(double)a1; - (double)_contentScaleForMessage:(id)a0 amongRecentMessagesInPinnedConversations:(id)a1; - (long long)_firstContactItemAlignmentForContactItem:(id)a0 previousSnapshot:(id)a1 totalNumberOfContactItemIdentifiersWithUnreadMessages:(long long)a2; - (id)initWithActivityItems:(id)a0 contactItems:(id)a1; - (id)initWithConversation:(id)a0 recentMessagesInPinnedConversations:(id)a1 previousSnapshot:(id)a2; @end