virtual [TOnlineAsyncOpHandle](API\Plugins\OnlineServicesInterface\Online\TOnlineAsyncOpHandle)< [FWriteLeaderboardScores](API\Plugins\OnlineServicesCommon\Online\FWriteLeaderboardScores) > WriteLeaderboardScores ( [FWriteLeaderboardScores::Params](API\Plugins\OnlineServicesCommon\Online\FWriteLeaderboardScores\Params) && Params )