@interface RKMessageClassifier : NSObject + (void)setPreferredLanguages:(id)a0; + (id)preferredLanguages; + (id)messageClassification:(id)a0 withLanguageIdentifier:(id)a1 conversationTurns:(id)a2; + (id)messageClassification:(id)a0 withLanguageIdentifier:(id)a1; + (BOOL)questionClassification:(id)a0 withLanguageIdentifier:(id)a1; @end