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: daemon.rb
    path of file: ./repos/facets/lib/core/facets/process
    
    the code of the file until where you have to start completion: module Process

  # Turns the current script into a daemon process
  # that detaches from the console. It can be shut
  # down with a TERM signal.
  #
  # CREDIT: David Heinemeier Hansso
    
  def self.daemon(nochdir=nil, noclose=nil)
    exit if fork # Parent exits, child continues.
    Process.setsid # Become session leader.
    exit if fork # Zap session leader. See [1].

    unless nochdir
      Dir.chdir "/" # Release old working directory.
    end