code: def test_bbands():
      """test TA.BBANDS"""
  
      bb = TA.BBANDS(ohlc, 20)
      talib_bb = talib.BBANDS(ohlc["close"], timeperiod=20)
  
      # assert int(bb['BB_UPPER'][-1]) == int(talib_bb[0].values[-1])
      # assert 8212 == 8184
  
      # assert int(bb['BB_LOWER'][-1]) == int(talib_bb[2].values[-1])
      # assert 6008 == 6036
  
      pass
  
imports: import pytest
  import os
  import pandas
  from finta import TA
  import talib
label_desc: Use image node_id 17 for calling a global function with example usage: test_bbands() without return types