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: drupal_drupalgeddon2.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://m
    
  def check
    checkcode = CheckCode::Unknown

    @version = target['Version'] || drupal_version

    unless @version
      vprint_error('Could not determine Drupal version to target')
      return checkcode
    end