code: def assertAmountsAreEqual(self, first, second, precision=2):
      self.assertEqual(
          round(first, precision), round(second, precision)
      )
  
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 4 for calling the TestCase obj's underlying member method code with example usage: obj.assertAmountsAreEqual(first, second, precision) without return types