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: inline.rb
    path of file: ./repos/ruby-packer/ruby/lib/bundler
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

# Allows for declaring
    
def gemfile(install = false, options = {}, &gemfile)
  require_relative "../bundler"

  opts = options.dup
  ui = opts.delete(:ui) { Bundler::UI::Shell.new }
  ui.level = "silent" if opts.delete(:quiet)
  raise ArgumentError, "Unknown options: #{opts.keys.join(", ")}" unless opts.empty?

  begin
    old_root = Bundler.method(:root)
    bundler_module = class << Bundler; self; end
    bundler_module.send(:remove_method, :root)
    def Bundler.root
      Bundler::SharedHelpers.pwd.expand_path
    end
    old_gemfile = ENV["BUNDLE_GEMFILE"]
    Bundler::SharedHelpers.set_env "BUNDLE_GEMFILE", "Gemfile"

    Bundler::Plugin.gemfile_install(&gemfile) if Bundler.feature_flag.plugins?
    builder = Bundler::Dsl.new
    builder.instance_eval(&gemfile)

    Bundler.settings.temporary(:frozen => false) do
      definition = builder.to_definition(nil, true)
      def definition.lock(*); end
      definition.validate_runtime!

      Bundler.ui = install ? ui : Bundler::UI::Silent.new
      if install || definition.missing_specs?
        Bundler.settings.temporary(:inline => true, :disable_platform_warnings => true) do
          installer = Bundler::Installer.install(Bundler.root, definition, :system => true)
          installer.post_install_messages.each do |name, message|
            Bundler.ui.info "Post-install message from #{name}:\n#{message}"
          end
        end
      end

      runtime = Bundler::Runtime.new(nil, definition)
      runtime.setup.require
    end
  ensure
    if bundler_module
      bundler_module.send(:remove_method, :root)
      bundler_module.send(:define_method, :root, old_root)
    end