/// <summary>
/// Get ranked stats. Includes statistics for Twisted Treeline and Summoner's Rift.
/// </summary>
private static async Task <IRankedStats> GetRankedStatsSummariesAsync(
IApiModel leagueModel,
long summonerId,
SeasonEnum?season = null,
RegionEnum?region = null)
{
if (leagueModel == null)
{
throw new ArgumentNullException("leagueModel");
}
var statsService = new StatsService(leagueModel.ApiConfiguration);
return(await statsService.GetRankedStatsSummariesBySummonerIdAsync(summonerId, season, region));
}