code: def _initializeEphemeralMembers(self):
      
  
      for attrName in self._getEphemeralMembersBase():
        if attrName != "_loaded":
          if hasattr(self, attrName):
            if self._loaded:
              # print self.__class__.__name__, "contains base class member '%s' " \
              #     "after loading." % attrName
              # TODO: Re-enable warning or turn into error in a future release.
              pass
            else:
              print self.__class__.__name__, "contains base class member '%s'" % \
                  attrName
      if not self._loaded:
        for attrName in self._getEphemeralMembersBase():
          if attrName != "_loaded":
            # if hasattr(self, attrName):
            #   import pdb; pdb.set_trace()
            assert not hasattr(self, attrName)
          else:
            assert hasattr(self, attrName)
  
      # Profiling information
      self._profileObj = None
      self._iterations = 0
  
      # Let derived class initialize ephemerals
      self._initEphemerals()
      self._checkEphemeralMembers()
docs: Initialize all ephemeral data members, and give the derived class the
      opportunity to do the same by invoking the virtual member _initEphemerals(),
      which is intended to be overridden.
  
      NOTE: this is used by both __init__ and __setstate__ code paths.