/// <summary> /// Retrieves leagues entry data for summoner, including league entries for all of summoner's teams /// </summary> private static async Task<IEnumerable<ILeague>> RetrieveLeaguesEntryDataAsync( IApiModel leagueModel, long summonerId, RegionEnum? region = null) { if (leagueModel == null) throw new ArgumentNullException("leagueModel"); var leagueService = new LeagueService(leagueModel.ApiConfiguration); return await leagueService.RetrievesLeaguesEntryDataForSummonerAsync(summonerId, region); }