code: def tdi(self, monotonic):
      tdi = timedelta_range("1 Day", periods=10)
      if monotonic == "decreasing":
          tdi = tdi[::-1]
      elif monotonic is None:
          taker = np.arange(10, dtype=np.intp)
          np.random.default_rng(2).shuffle(taker)
          tdi = tdi.take(taker)
      return tdi
  
imports: from datetime import datetime
  import re
  import numpy
  import pytest
  from pandas import Index, NaT, Timedelta, TimedeltaIndex, Timestamp, notna, offsets, timedelta_range, to_timedelta
  import pandas._testing
label_desc: Use image node_id 2 for calling the TestMaybeCastSliceBound obj's underlying member method code with example usage: obj.tdi(monotonic) and returns: tdi