code: def test_reverse(self):
      original = self.data.copy()
      result = original.ta.reverse
  
      # Check if first and last time are reversed
      self.assertEqual(result.index[-1], original.index[0])
      self.assertEqual(result.index[0], original.index[-1])
  
imports: from .config import error_analysis, sample_data, CORRELATION, CORRELATION_THRESHOLD, VERBOSE
  from .context import pandas_ta
  from unittest import TestCase, skip
  import pandas.testing
  from pandas import DataFrame, Series
  import talib
label_desc: Use image node_id 6 for calling the TestMomentum obj's underlying member method code with example usage: obj.test_reverse() without return types