code: def summoner(name_or_id, optional={})
      region = optional[:region] || @sightstone.region
      uri = if name_or_id.is_a? Integer
        "https://prod.api.pvp.net/api/lol/#{region}/v1.3/summoner/#{name_or_id}"
      else
        "https://prod.api.pvp.net/api/lol/#{region}/v1.3/summoner/by-name/#{URI::encode(name_or_id)}"
      end
      
      response = _get_api_response(uri)
      _parse_response(response) { |resp|
        data = JSON.parse(resp)
        s = Summoner.new(data.values[0])
        if block_given?
          yield s
        else
          return s
        end
      }
    end
docs: returns a summoner object
   @param name_or_id [Integer, String] name or id of the summoner
   @param optional [Hash] optional arguments: :region => replaces default region
   @ return [Summoner] summoner