@interface _PSMessagesPinningUtilities : NSObject

+ (id)actionTypeToString:(long long)a0;
+ (id)startOfDayForDate:(id)a0;
+ (id)chatGuidsFromSuggestions:(id)a0;
+ (id)dateToString:(id)a0;
+ (id)interactionMethodToString:(long long)a0;
+ (id)intersectionsOfActualPinnings:(id)a0 fromTopN:(unsigned long long)a1 suggestions:(id)a2;
+ (id)suggestionsToString:(id)a0;

@end