docs: def get_metrics_data(self, query):
          """
          Get the metrics data from Elasticsearch given a DSL query
  
          :param query: query to be sent to Elasticsearch
          :return: a dict with the results of executing the query
          """
          if self.es_url.startswith("http"):
              url = self.es_url
          else:
              url = 'http://' + self.es_url
          es = Elasticsearch(url)
          s = Search(using=es, index=self.es_index)
          s = s.update_from_dict(query)
          try:
              response = s.execute()
              return response.to_dict()
          except Exception as e:
              print()
              print("In get_metrics_data: Failed to fetch data.\n Query: {}, \n Error Info: {}"
                    .format(query, e.info))
              raise