old_contents: from tendrl.commons import etcdobj
  from tendrl.commons.message import Message as message
  from tendrl.commons import objects
  
  
  class NodeMessage(objects.BaseObject, message):
      internal = True
      def __init__(self, **node_message):
          self._defs = {}
          message.__init__(self, **node_message)
          objects.BaseObject.__init__(self)
  
          self.value = 'nodes/%s/Messages/%s'
          self._etcd_cls = _NodeMessageEtcd
  
  class _NodeMessageEtcd(etcdobj.EtcdObj):
      """Node message object, lazily updated
  
      """
      __name__ = 'nodes/%s/Messages/%s'
      _tendrl_cls = NodeMessage
  
      def render(self):
          self.__name__ = self.__name__ % (
              self.node_id, self.message_id
          )
          return super(_NodeMessageEtcd, self).render()
  
new_contents: from tendrl.commons import etcdobj
  from tendrl.commons.message import Message as message
  from tendrl.commons import objects
  
  
  class NodeMessage(objects.BaseObject, message):
      internal = True
      def __init__(self, **node_message):
          self._defs = {}
          message.__init__(self, **node_message)
          objects.BaseObject.__init__(self)
  
          self.value = 'nodes/%s/messages/%s'
          self._etcd_cls = _NodeMessageEtcd
  
  class _NodeMessageEtcd(etcdobj.EtcdObj):
      """Node message object, lazily updated
  
      """
      __name__ = 'nodes/%s/messages/%s'
      _tendrl_cls = NodeMessage
  
      def render(self):
          self.__name__ = self.__name__ % (
              self.node_id, self.message_id
          )
          return super(_NodeMessageEtcd, self).render()
  
subject: Update __init__.py