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

module Msf::Exploit::Remote::HTTP::Wordpress::Login
  # performs a wordpress login
  #
  # @param user [String] Username
  # @param pass [String] Password
  # @param timeout [Integer] The maximum number of seconds to wait before the request times out
  # @return [String,nil] the session cookies as a single string on successful login, nil otherwise
  def wordpress_login(user, pass, timeout = 20)
    redirect = "#{target_uri}#{Rex::Text.rand_text_alpha(8)}"
    res = send_request_cgi({
        'method' => 'POST',
        'uri' => wordpress_url_login,
        'vars_post' => wordpre
    
  def wordpress_login(user, pass, timeout = 20)
    redirect = "#{target_uri}#{Rex::Text.rand_text_alpha(8)}"
    res = send_request_cgi({
        'method' => 'POST',
        'uri' => wordpress_url_login,
        'vars_post' => wordpress_helper_login_post_data(user, pass, redirect)
    }, timeout)
    if res && res.redirect? && res.redirection && res.redirection.to_s == redirect
      cookies = res.get_cookies
      # Check if a valid wordpress cookie is returned
      return cookies if
        # current Wordpress
        cookies =~ /wordpress(?:_sec)?_logged_in_[^=]+=[^;]+;/i ||
        # Wordpress 2.0
        cookies =~ /wordpress(?:user|pass)_[^=]+=[^;]+;/i ||
        # Wordpress 2.5
        cookies =~ /wordpress_[a-z0-9]+=[^;]+;/i
    end