code: def stock_ticker():
      return "AAPL"
  
file_path: pandas-ai/tests/connectors/test_yahoo_finance.py
imports: from unittest.mock import patch
  import pandas
  import pytest
  import yfinance
  from pandasai.connectors.yahoo_finance import YahooFinanceConnector
label_desc: Use image node_id 1 for calling a global function with example usage: stock_ticker() and returns: str