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: forge_ticket.rb
    path of file: ./repos/metasploit-framework/modules/auxiliary/admin/kerberos
    
    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::Auxiliary
  include Msf::Auxiliary::Report
  include Msf::Exploit::Remote::Kerberos::Client
    
  def forge_sapphire
    validate_remote
    validate_key!
    options = {}
    enc_key, enc_type = get_enc_key_and_type
    include_crypto_params(options, enc_key, enc_type)

    begin
      auth_context = kerberos_authenticator.authenticate_via_kdc(options)
    rescue ::Rex::Proto::Kerberos::Model::Error::KerberosError => e
      fail_with(Msf::Exploit::Failure::UnexpectedReply, "Error authenticating to KDC: #{e}")
    rescue Rex::HostUnreachable => e
      fail_with(Msf::Exploit::Failure::Unreachable, "Requesting TGT failed: #{e.message}")
    end