code: def log_indexing_error(cls, indexing_errors):
          
          indexing_errors_log = []
          for indexing_error in indexing_errors:
              indexing_errors_log.append(str(indexing_error))
          raise exceptions.ElasticsearchException(', '.join(indexing_errors_log))
docs: Logs indexing errors and raises a general ElasticSearch Exception