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/auxiliary
    
    the code of the file until where you have to start completion: # -*- coding: binary -*-

module Msf

###
#
# This module exposes methods that may be useful to exploits that deal with
# servers that require authentication via /bin/login
#
###
module Auxiliary::Login

  NULL = "\000"
  CR   = "\r"
  LF   = "\n"
  EOL  = CR + LF

  #
  # Creates an instance of a login negotiation module.
  #
  def initialize(info = {})
    super

    create_login_ivars
  end

  def create_login_ivars
    # Appended to by each read and gets reset after each send.  Doing it
    # this way lets us deal with partial reads in the middle of expect
    # strings, e.g., the first recv returns "Pa" and the second returns
    # "ssword: "
    @recvd = ''
    @trace = ''

    #
    # Some of these regexes borrowed from NeXpose, others added from datasets
    #
    @login_regex = /(?:log[io]n( name|)|user( ?name|id|))\s*\:/i
    @password_regex = /(?:password|passwd)\s*\:/i
    @false_failure_regex = /(?:(^\s*last)\ login *\:|allows only\ .*\ Telnet\ Client\ License)/i
    @failure_regex = /(?:
        Incorrect | Unknown  | Fail      | Invalid  |
        Login     | Password | Passwd    | Username 
    
  def create_login_ivars
    # Appended to by each read and gets reset after each send.  Doing it
    # this way lets us deal with partial reads in the middle of expect
    # strings, e.g., the first recv returns "Pa" and the second returns
    # "ssword: "
    @recvd = ''
    @trace = ''

    #
    # Some of these regexes borrowed from NeXpose, others added from datasets
    #
    @login_regex = /(?:log[io]n( name|)|user( ?name|id|))\s*\:/i
    @password_regex = /(?:password|passwd)\s*\:/i
    @false_failure_regex = /(?:(^\s*last)\ login *\:|allows only\ .*\ Telnet\ Client\ License)/i
    @failure_regex = /(?:
        Incorrect | Unknown  | Fail      | Invalid  |
        Login     | Password | Passwd    | Username |
        Unable    | Error    | Denied    | Reject   |
        Refuse    | Close    | Closing   | %\ Bad   |
        Sorry     |
        ^http | html |
        Not\ on\ system\ console |
        Enter\ username\ and\ password |
        Auto\ Apply\ On |
        YOU\ LOGGED\ IN\ USING\ ALL\ UPPERCASE\ CHARACTERS|
        \n\*$ |
        (Login ?|User ?)(name|): |
        ^\s*\<[a-f0-9]+\>\s*$ |
        ^\s*220.*FTP|
        not\ allowed\ to\ log\ in
      )/mix

    @waiting_regex = /(?:
      .*please\ wait.* |
      .*one\ minute.*
    )/mix

    @busy_regex = /(?:
      Another\ telnet\ session\ is\ in\ progress | Disconnecting\.\.\.
    )/mix

    @success_regex = /(?:
        list\ of\ built-in     |
        sh.*[\#\$]\s*$         |
        \[\/\]\s*$             |
        or\ the\ MENU\ system  |
        Password\ is\ not\ set |
        logging\ in\ as\ visitor |
        Login\ successful
      )/mix
  end