docs: def cluster_stats(nodes=None, hosts=None, profile=None):
      '''
      .. versionadded:: 2017.7.0
  
      Return Elasticsearch cluster stats.
  
      nodes
          List of cluster nodes (id or name) to display stats for. Use _local for connected node, empty for all
  
      CLI example::
  
          salt myminion elasticsearch.cluster_stats
      '''
      es = _get_instance(hosts, profile)
  
      try:
          return es.cluster.stats(node_id=nodes)
      except elasticsearch.TransportError as e:
          raise CommandExecutionError("Cannot retrieve cluster stats, server returned code {0} with message {1}".format(e.status_code, e.error))