docstr: Checks if we just printed app updating notification.
  If so filter those out.
code: def _is_updating_notification(packet: Packet):
      """
      Checks if we just printed app updating notification.
      If so filter those out.
      """
      data = packet.data
      if set(data.keys()) != {"stdout", "time"} and set(
          data.keys()
      ) != {"logger", "time"}:
          return False
  
      if "stdout" in data:
          lines = data["stdout"].split("\n")
      else:
          lines = data["logger"].split("\n")
  
      if len(lines) == 1 and lines[0].find(UPDATING_APP_MESSAGE) != -1:
          return True
  
      return False
  
imports: import json
  import socket
  import threading
  import time
  import urllib.error
  import urllib.request
  from dataclasses import dataclass
  from queue import Queue
  from typing import Dict, Optional, Set, List
  import labml
  from labml import logger
  from labml.logger import Text
  from labml.utils.notice import labml_notice
label_desc: Use image node_id 5 for calling the _AppTrackThread obj's underlying member method code with example usage: obj._is_updating_notification(packet) and returns: False, False, True