code: def _build_aggregation(self, *args, **kwargs) -> Dict[str, Any]:
      raise NotImplementedError()
  
imports: import dataclasses
  import logging
  from typing import TYPE_CHECKING, Any, Dict, List, Optional, Union
  from argilla.server.daos.backend.query_helpers import aggregations
  from argilla.server.helpers import unflatten_dict
label_desc: Use image node_id 6 for calling the ElasticsearchMetric obj's underlying member method code with example usage: obj._build_aggregation() without return types