virtual [TOnlineAsyncOpHandle](API\Plugins\OnlineServicesInterface\Online\TOnlineAsyncOpHandle)< [FQueryAchievementDefinitions](API\Plugins\OnlineServicesInterface\Online\FQueryAchievementDefinitions) > QueryAchievementDefinitions ( [FQueryAchievementDefinitions::Params](API\Plugins\OnlineServicesInterface\Online\FQueryAchievementDefinitions\Params) && Params )