class Bundler::Thor::Runner

def save_yaml(yaml)
  yaml_file = File.join(thor_root, "thor.yml")
  unless File.exist?(yaml_file)
    FileUtils.mkdir_p(thor_root)
    yaml_file = File.join(thor_root, "thor.yml")
    FileUtils.touch(yaml_file)
  end
  File.open(yaml_file, "w") { |f| f.puts yaml.to_yaml }
end