code: def enqueue(self, value):
      node = QueueNode(value)
      if self._front is None:
          self._front = node
          self._rear = node
      else:
          self._rear.next = node
          self._rear = node
      self._size += 1
  
imports: from abc import ABCMeta, abstractmethod
label_desc: Use image node_id 3 for calling the LinkedListQueue obj's underlying member method code with example usage: obj.enqueue(value) without return types