code: def to_dict(self) -> Dict[str, Any]:
      document = (
          self.document.to_dict(flatten=False)
          if self.document is not None
          else None
      )
      context = (
          self.context.to_json() if self.context is not None else None
      )
      document_cells = [asdict(c) for c in self.document_cells]
      context_cells = [asdict(c) for c in self.context_cells]
      return default_to_dict(
          self,
          data=self.data,
          query=self.query,
          document=document,
          context=context,
          score=self.score,
          document_cells=document_cells,
          context_cells=context_cells,
          meta=self.meta,
      )
  
file_path: haystack/haystack/dataclasses/answer.py
imports: import io
  from typing import Any, Dict, List, Optional, Protocol, runtime_checkable
  from dataclasses import dataclass, field, asdict
  from pandas import DataFrame, read_json
  from haystack.core.serialization import default_from_dict, default_to_dict
  from haystack.dataclasses.document import Document
label_desc: Use image node_id 1 for calling the ExtractedTableAnswer obj's underlying member method code with example usage: obj.to_dict() and returns: default_to_dict