docs: def basic_client():
      """Returns an Elasticsearch basic client that is responsive
      to the environment variable ELASTICSEARCH_ENDPOINT"""
      es_connected = False
      while not es_connected:
          try:
              ES = Elasticsearch(
                  hosts=[HOSTNAME]
              )
              es_connected = True
          except TransportError as e:
              logging.info('Not yet connected: %s, sleeping for 1s', e)
              time.sleep(1)
      return ES