docs: def init_run(shell, no_daemon, daemon_options, daemon_outfile):
      """
      Configure your shell.
  
      Add the following line in your shell RC file and then you are
      ready to go::
  
        eval $(%(prog)s)
  
      To check if your shell is supported, simply run::
  
        %(prog)s --no-daemon
  
      If you want to specify shell other than $SHELL, you can give
      --shell option::
  
        eval $(%(prog)s --shell zsh)
  
      By default, this command also starts daemon in background to
      automatically index shell history records.  To not start daemon,
      use --no-daemon option like this::
  
        eval $(%(prog)s --no-daemon)
  
      To see the other methods to launch the daemon process, see
      ``rash daemon --help``.
  
      """
      import sys
      from .__init__ import __version__
      init_file = find_init(shell)
      if os.path.exists(init_file):
          sys.stdout.write(INIT_TEMPLATE.format(
              file=init_file, version=__version__))
      else:
          raise RuntimeError(
              "Shell '{0}' is not supported.".format(shell_name(shell)))
  
      if not no_daemon:
          from .daemon import start_daemon_in_subprocess
          start_daemon_in_subprocess(daemon_options, daemon_outfile)