code: def test_mom():
      """test TA.MOM"""
  
      mom = TA.MOM(ohlc, 15)
      talib_mom = talib.MOM(ohlc["close"], 15)
  
      assert round(talib_mom[-1], 5) == round(mom.values[-1], 5)
  
imports: import pytest
  import os
  import pandas
  from finta import TA
  import talib
label_desc: Use image node_id 13 for calling a global function with example usage: test_mom() without return types