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: version.rb
    path of file: ./repos/metasploit-framework/lib/msf/core/exploit/remote/http/moodle
    
    the code of the file until where you have to start completion: # -*- coding: binary -*-

module Msf::Exploit::Remote::HTTP::Moo
    
  def moodle_version
    # detect version from /lib/upgrade.txt
    version = moodle_version_helper(normalize_uri(target_uri.path, 'lib', 'upgrade.txt'), /=== #{MOODLE_VERSION_PATTERN} ===/i)
    return version if version

    nil
  end