code: def testHT_TRENDMODE(self):
      ds = self.__loadMedPriceDS()
      self.assertAmountsAreEqual(
          indicator.HT_TRENDMODE(ds, 252)[63], 1.0
      )
  
imports: import datetime
  import talib
  from six.moves import xrange
  from .None import common
  from pyalgotrade.talibext import indicator
  from pyalgotrade import bar
  from pyalgotrade import dataseries
  from pyalgotrade.dataseries import bards
label_desc: Use image node_id 25 for calling the TestCase obj's underlying member method code with example usage: obj.testHT_TRENDMODE() without return types