code: def test_add_dataframes(
      self, smart_dataframe: SmartDataframe, tracker: QueryExecTracker
  ):
      # Add the dataframe to the tracker
      tracker._dataframes = []
      tracker.add_dataframes([smart_dataframe])
  
      # Check if the dataframe was added correctly
      assert len(tracker._dataframes) == 1
      assert len(tracker._dataframes[0]["headers"]) == 3
      assert len(tracker._dataframes[0]["rows"]) == 3
  
imports: import json
  import os
  import time
  from typing import Optional
  from unittest.mock import MagicMock, Mock, patch
  import pandas
  import pytest
  from pandasai.helpers.query_exec_tracker import QueryExecTracker
  from pandasai.llm.fake import FakeLLM
  from pandasai.smart_dataframe import SmartDataframe
  from unittest import TestCase
  from datetime import datetime, timedelta
label_desc: Use image node_id 6 for calling the TestQueryExecTracker obj's underlying member method code with example usage: obj.test_add_dataframes(smart_dataframe, tracker) without return types