code: def testPeriod2_BoundedSeq(self):
      self.__testPeriod2Impl(1)
      self.__testPeriod2Impl(2)
      self.__testPeriod2Impl(100)
  
imports: from six.moves import xrange
  from .None import common
  from pyalgotrade.technical import ma
  from pyalgotrade import dataseries
  from pyalgotrade.barfeed import ninjatraderfeed
  from pyalgotrade import bar
label_desc: Use image node_id 4 for calling the WMATestCase obj's underlying member method code with example usage: obj.testPeriod2_BoundedSeq() without return types