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: auth_brute.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 provides methods for brute forcing authentication
#
###

module Auxiliary::AuthBrute

  def initialize(info = {})
    super

    register_options([
      OptString.new('USERNAME', [ false, 'A specific username to authenticate as' ]),
      OptString.new('PASSWORD', [ false, 'A specific password to authenticate with' ]),
      OptPath.new('USER_F
    
  def counters_expired?(this_service,credentials)
    expired_cred = false
    expired_time = false
    # Workaround for cases where multiple auth_brute modules are running concurrently and
    # someone stomps on the @max_per_service class variable during setup.
    current_max_per_service = self.class.class_variable_get("@@max_per_service") rescue nil
    return false unless current_max_per_service
    if @@guesses_per_service[this_service] >= (@@max_per_service)
      if @@max_per_service < credentials.size
        print_brute(
          :level => :vstatus,
          :ip => datastore['RHOST'],
          :port => datastore['RPORT'],
          :msg => "Hit maximum guesses for this service (#{@@max_per_service}).")
          expired_cred = true
      end