code: def candlestick_data():
      return pd.DataFrame(
          dict(
              x=[pd.Timestamp("20200101"), pd.Timestamp("20200101")],
              symbol=["a", "b"],
              open=[1, 2],
              close=[1, 2],
              high=[1, 2],
              low=[1, 2],
          )
      )
  
imports: import getpass
  import os
  import random
  import string
  import unittest
  import numpy
  import pandas
  import pytest
  from pandas.tseries.offsets import Day
  from past.utils import old_div
  from six import PY3
label_desc: Use image node_id 14 for calling a global function with example usage: candlestick_data() and returns: pd