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