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: hashdump.rb
    path of file: ./repos/metasploit-framework/modules/post/solaris/gather
    
    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::Post
  include Msf::Post::File
  include Msf::
    
  def unshadow(pf, sf)
    unshadowed = ''
    sf.each_line do |sl|
      pass = sl.scan(/^\w*:([^:]*)/).join
      next unless pass !~ /^\*LK\*|^NP/

      user = sl.scan(/(^\w*):/).join
      pf.each_line do |pl|
        if pl.match(/^#{user}:/)
          unshadowed << pl.gsub(/:x:/, ":#{pass}:")
        end
      end
    end