[TOnlineAsyncOpHandle](API\Plugins\OnlineServicesInterface\Online\TOnlineAsyncOpHandle)< [FBuildSessionFromDetailsHandle](API\Plugins\OnlineServicesEOSGS\Online\FBuildSessionFromDetailsHandle) > BuildSessionFromDetailsHandle ( [FBuildSessionFromDetailsHandle::Params](API\Plugins\OnlineServicesEOSGS\Online\FBuildSessionFromDetailsHandle\Params) && Params )