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: dreamftp_format.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 require
    
  def check
    connect
    banner = sock.get_once
    disconnect
    if (banner.to_s =~ /Dream FTP Server/)
      return Exploit::CheckCode::Detected
    end