You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: configuration_wizard.rb
    path of file: ./repos/birdwatcher/lib/birdwatcher
    
    the code of the file until where you have to start completion: module Birdwatcher
  class ConfigurationWizard
    def start!
      configuration = gather_configuration
    end

    private

    def gather_configuration
      Birdwatcher::Console.instance.info("Sta
    
    def gather_twitter_keys
      keys = []
      begin
        consumer_key    = HighLine.ask("Enter Twitter consumer key: ")
        consumer_secret = HighLine.ask("Enter Twitter consumer secret: ")
        keys << {
          "consumer_key"    => consumer_key,
          "consumer_secret" => consumer_secret
        }
      end while HighLine.agree("Enter another Twitter keypair? (y/n) ")
      keys
    end