code: def test_qqe_ext(self):
      self.data.ta.qqe(append=True)
      self.assertIsInstance(self.data, DataFrame)
      self.assertEqual(
          list(self.data.columns[-4:]),
          [
              "QQE_14_5_4.236",
              "QQE_14_5_4.236_RSIMA",
              "QQEl_14_5_4.236",
              "QQEs_14_5_4.236",
          ],
      )
  
imports: from .config import sample_data
  from .context import pandas_ta
  from unittest import skip, TestCase
  from pandas import DataFrame
label_desc: Use image node_id 30 for calling the TestMomentumExtension obj's underlying member method code with example usage: obj.test_qqe_ext() without return types