docs: def unpause(name, call=None, session=None):
      '''
      UnPause a vm
  
      .. code-block:: bash
  
          salt-cloud -a unpause xenvm01
  
      '''
      if call == 'function':
          raise SaltCloudException(
              'The show_instnce function must be called with -a or --action.'
          )
      if session is None:
          session = _get_session()
      log.info('Unpausing VM %s', name)
      vm = _get_vm(name, session)
      task = session.xenapi.Async.VM.unpause(vm)
      _run_async_task(task, session)
      return show_instance(name)