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: tftp.rb
    path of file: ./repos/metasploit-framework/lib/msf/core/payload/adapter/fetch/server
    
    the code of the file until where you have to start completion: module Msf::Payload::Adapter::Fetch::Server::TFTP

  def start_t
    
  def initialize(*args)
    super
    register_options(
      [
        Msf::OptBool.new('FETCH_SRVONCE', [ true, 'Stop serving the payload after it is retrieved', true ])
      ]
    )
  end