@interface PSGUtilities : NSObject + (id)sharedInstance; - (id)localizedStringForKey:(id)a0 withLocale:(id)a1; - (id)localizedStringForKey:(id)a0 withLocale:(id)a1 onlyIfCached:(BOOL)a2 wasCached:(BOOL *)a3; - (id /* block */)prewarmCacheForLocale:(id)a0 usingQueue:(id)a1; @end