code: def __applyChanges(self):
      assert not self.__emitting
      for action, param in self.__deferred:
          action(param)
      self.__deferred = []
  
imports: import abc
  import six
  from pyalgotrade import dispatchprio
label_desc: Use image node_id 4 for calling the Event obj's underlying member method code with example usage: obj.__applyChanges() without return types