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: train_helpers.rb
    path of file: ./repos/chef/chef-utils/lib/chef-utils/dsl
    
    the code of the file until where you have to start completion: # frozen_string_literal: true
#
# Copyright:: Copyright (c) Chef Software Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file exce
    
      def file_open(*args, &block)
        if __transport_connection
          content = __transport_connection.file(args[0]).content
          string_io = StringIO.new content
          yield string_io if block_given?
          string_io
        else
          File.open(*args, &block)
        end