code: def testULTOSC(self):
      barDs = self.__loadBarDS()
      self.assertAmountsAreEqual(
          indicator.ULTOSC(barDs, 252, 7, 14, 28)[28], 47.1713
      )
      self.assertAmountsAreEqual(
          indicator.ULTOSC(barDs, 252, 7, 14, 28)[29], 46.2802
      )
      self.assertAmountsAreEqual(
          indicator.ULTOSC(barDs, 252, 7, 14, 28)[-1], 40.0854
      )
  
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 54 for calling the TestCase obj's underlying member method code with example usage: obj.testULTOSC() without return types