def league_entries(summoner, optional={})
    region = optional[:region] || @sightstone.region
    id = if summoner.is_a? Summoner
      summoner.id
    else
      summoner
    end
    
    uri = "https://prod.api.pvp.net/api/lol/#{region}/v2.3/league/by-summoner/#{id}/entry"
    response = _get_api_response(uri)
    _parse_response(response) { |resp|
      data = JSON.parse(resp)
      entries = []
      data.each do |entry|
        entries << LeagueItem.new(entry)
      end
      if block_given?
        yield entries
      else
        return entries
      end
    }
  end
def league_entries(summoner, optional={})
    region = optional[:region] || @sightstone.region
    id = if summoner.is_a? Summoner
      summoner.id
    else
      summoner
    end
    
    uri = "https://prod.api.pvp.net/api/lol/#{region}/v2.3/league/by-summoner/#{id}/entry"
    response = _get_api_response(uri)
    _parse_response(response) { |resp|
      data = JSON.parse(resp)
      entries = []
      data.each do |entry|
        entries << LeagueItem.new(entry)
      end
      if block_given?
        yield entries
      else
        return entries
      end
    }
  end
Get all entries for the given summoner
 @param [Summoner, Integer] summoner or summoner id
 @param optional [Hash] optional arguments: :region => replaces default region
 @return [Array<LeagueItem>] an array of all entries for that given summoner