code: def stop(name, call=None):
      
      if call != 'action':
          raise SaltCloudSystemExit(
              'The instance action must be called with -a or --action.'
          )
  
      log.info("Stopping machine: %s", name)
      vb_stop_vm(name)
      machine = vb_get_machine(name)
      del machine["name"]
      return treat_machine_dict(machine)
docs: Stop a running machine.
      @param name: Machine to stop
      @type name: str
      @param call: Must be "action"
      @type call: str