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: generic_jcl.rb
    path of file: ./repos/metasploit-framework/modules/payloads/singles/cmd/mainframe
    
    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
##

##
# This is a prototype JCL command payload for z/OS - mainframe.
#   It submits the IEFBR14 standard z/OS program, which does nothing
#   but complete successfully and return code 0.
#
#   See http://www.ibm.com/support/knowledgecenter/SSLTBW_2.1.0/com.ibm.zos.v2r1.ieab500/hpropr.htm?lang=en
#   for more information on IEFBR14
##


module MetasploitModule
  CachedSize = 150
  include Msf::Payload::Single
  include Msf::Payload::Mainframe
  include Msf::Sessions::CommandShellOptions

  def initialize(info = {})
    super(merge_info(info,
                     'Name'          => 'Generic JCL Test for Mainframe Exploits',
                     'Description'   => 'Provide JCL which can be used to submit
                        a job to JES2 on z/OS which will exit and return 0.  This
                        can be used as a template for other JCL based payloads',
                     'Author'        => 'Bigendian Smalls',
                     'License'       => MSF_LICENSE,
                     'Platform'   
    
  def initialize(info = {})
    super(merge_info(info,
                     'Name'          => 'Generic JCL Test for Mainframe Exploits',
                     'Description'   => 'Provide JCL which can be used to submit
                        a job to JES2 on z/OS which will exit and return 0.  This
                        can be used as a template for other JCL based payloads',
                     'Author'        => 'Bigendian Smalls',
                     'License'       => MSF_LICENSE,
                     'Platform'      => 'mainframe',
                     'Arch'          => ARCH_CMD,
                     'Handler'       => Msf::Handler::None,
                     'Session'       => Msf::Sessions::MainframeShell,
                     'PayloadType'   => 'cmd',
                     'RequiredCmd'   => 'jcl',
                     'Payload'       =>
      {
        'Offsets' => {},
        'Payload' => ''
      }))
    register_options(
      [
        OptString.new('ACTNUM', [true, "Accounting info for JCL JOB card", "MSFUSER-ACCTING-INFO"]),
        OptString.new('PGMNAME', [true, "Programmer name for JCL JOB card", "programmer name"]),
        OptString.new('JCLASS', [true, "Job Class for JCL JOB card", "A"]),
        OptString.new('NOTIFY', [false, "Notify User for JCL JOB card", ""]),
        OptString.new('MSGCLASS', [true, "Message Class for JCL JOB card", "Z"]),
        OptString.new('MSGLEVEL', [true, "Message Level for JCL JOB card", "(0,0)"])
      ],
      self.class
    )
    register_advanced_options(
      [
        OptBool.new('NTFYUSR', [true, "Include NOTIFY Parm?", false]),
        OptString.new('JOBNAME', [true, "Job name for JCL JOB card", "DUMMY"])
      ],
      self.class
    )
  end