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: moodle_spelling_binary_rce.rb
    path of file: ./repos/metasploit-framework/modules/exploits/multi/http
    
    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
    
  def check
    return CheckCode::Unknown('No web server or moodle instance found') unless moodle_and_online?

    v = moodle_version
    return CheckCode::Detected('Unable to determine moodle version') if v.nil?
    if Rex::Version.new(v) <= Rex::Version.new('2.5.2')
      return CheckCode::Appears("Exploitable Moodle version #{v} detected")
    end