@interface FBSSettingsExtension : NSObject + (id)protocol; + (id)alloc; + (id)settings:(id)a0 valueDescriptionForFlag:(long long)a1 object:(id)a2 ofSetting:(unsigned long long)a3; + (id)descriptionOfValue:(id)a0 forSetting:(id)a1; + (Class)extensionForProtocol:(id)a0; + (BOOL)isPrivacySensitiveSetting:(id)a0; + (BOOL)isVolatileSetting:(id)a0; + (id)valueForUndefinedSetting:(id)a0; @end