code: def search_keywords_field(self) -> str:
      return self._SEARCH_KEYWORDS_FIELD
  
imports: import logging
  import re
  from enum import Enum
  from typing import Any, Dict, List, Optional, Union
  from argilla.server.daos.backend.query_helpers import filters
  from argilla.server.daos.backend.search.model import BackendDatasetsQuery, BackendQuery, BackendRecordsQuery, BaseDatasetsQuery, QueryRange, SortableField, SortConfig
label_desc: Use image node_id 1 for calling the HighlightParser obj's underlying member method code with example usage: obj.search_keywords_field() and returns: self