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: test_rdoc_ri_driver.rb
    path of file: ./repos/ruby-packer/ruby/test/rdoc
    
    the code of the file until where you have to start completion: # frozen_string_literal: true
require_relativ
    
  def test_add_extension_modules_many_no_doc
    util_store

    out = @RM::Document.new

    enum = RDoc::Include.new 'Enumerable', nil
    @cFoo.add_include enum
    @cFooInc.instance_variable_set :@comment, ''

    @driver.add_extension_modules out, 'Includes', [[[@cFooInc, enum], @store1]]

    expected = @RM::Document.new(
      @RM::Rule.new(1),
      @RM::Heading.new(1, "Includes:"),
      @RM::Paragraph.new("(from #{@store1.friendly_path})"),
      @RM::Verbatim.new("Inc", "\n",
                        "Enumerable", "\n"))

    assert_equal expected, out
  end