docs: def set_autostart(vm_, state='on', **kwargs):
      '''
      Set the autostart flag on a VM so that the VM will start with the host
      system on reboot.
  
      :param vm_: domain name
      :param state: 'on' to auto start the pool, anything else to mark the
                    pool not to be started when the host boots
      :param connection: libvirt connection URI, overriding defaults
  
          .. versionadded:: 2019.2.0
      :param username: username to connect with, overriding defaults
  
          .. versionadded:: 2019.2.0
      :param password: password to connect with, overriding defaults
  
          .. versionadded:: 2019.2.0
  
      CLI Example:
  
      .. code-block:: bash
  
          salt "*" virt.set_autostart <domain> <on | off>
      '''
      conn = __get_conn(**kwargs)
      dom = _get_domain(conn, vm_)
  
      # return False if state is set to something other then on or off
      ret = False
  
      if state == 'on':
          ret = dom.setAutostart(1) == 0
  
      elif state == 'off':
          ret = dom.setAutostart(0) == 0
  
      conn.close()
      return ret