def summoners(names_or_ids, optional={})
    return {} if names_or_ids.empty?

    region = optional[:region] || @sightstone.region
    
    uri = if !names_or_ids[0].is_a? String
      "https://prod.api.pvp.net/api/lol/#{region}/v1.3/summoner/#{names_or_ids.join(',')}"
    else
      "https://prod.api.pvp.net/api/lol/#{region}/v1.3/summoner/by-name/#{URI::encode(names_or_ids.join(','))}"
    end
    
    response = _get_api_response(uri)
    _parse_response(response) { |resp|
      data = JSON.parse(resp)
      summoners = {}
      data.each do |id_or_name, raw_summoner|
        summoners[id_or_name] = Summoner.new(raw_summoner)
      end

      if block_given?
        yield summoners
      else
        return summoners
      end
    }
  end
def summoners(names_or_ids, optional={})
    return {} if names_or_ids.empty?

    region = optional[:region] || @sightstone.region
    
    uri = if !names_or_ids[0].is_a? String
      "https://prod.api.pvp.net/api/lol/#{region}/v1.3/summoner/#{names_or_ids.join(',')}"
    else
      "https://prod.api.pvp.net/api/lol/#{region}/v1.3/summoner/by-name/#{URI::encode(names_or_ids.join(','))}"
    end
    
    response = _get_api_response(uri)
    _parse_response(response) { |resp|
      data = JSON.parse(resp)
      summoners = {}
      data.each do |id_or_name, raw_summoner|
        summoners[id_or_name] = Summoner.new(raw_summoner)
      end

      if block_given?
        yield summoners
      else
        return summoners
      end
    }
  end
returns an array of summoner objects
 @param names_or_ids [Array<Integer, String>] names or ids of summoners
 @param optional [Hash] optional arguments: :region => replaces default region
 @return [Hash<(String or Integer), Summoner>] A Hash mapping summoner ids or names to summoner objects