virtual [TFuture](API\Runtime\Core\Async\TFuture)< [TOnlineResult](API\Plugins\OnlineServicesInterface\Online\TOnlineResult)< [FSendSessionInvite](API\Plugins\OnlineServicesInterface\Online\FSendSessionInvite) > > SendSessionInviteImpl ( const [FSendSessionInvite::Params](API\Plugins\OnlineServicesInterface\Online\FSendSessionInvite\Params) & Params )