code: def instance_log_thread(self, instance_id):
      start = time()
      # The driver will return the log content from the start on every call,
      # we keep record to avoid logging the same line twice
      # TODO: Find a cross cloud way to get incremental logs
      last_lnum = 0
      while time() - start <= self.max_spin_up_time_min * MINUTE:
          self.logger.info("getting startup logs for %r", instance_id)
          data = self.driver.console_log(instance_id)
          lines = data.splitlines()
          if not lines:
              self.logger.info("not startup logs for %r", instance_id)
          else:
              last_lnum, lines = latest_lines(lines, last_lnum)
              for line in lines:
                  self.logger.info(
                      "%r STARTUP LOG: %s", instance_id, line
                  )
          sleep(MINUTE)
  
imports: import re
  from collections import defaultdict, deque
  from enum import Enum
  from itertools import chain
  from threading import Event, Thread
  from time import sleep, time
  import attr
  from attr.validators import instance_of
  from .cloud_driver import CloudDriver
  from ..None import Task
  from ..backend_api import Session
  from ..backend_api.session import defs
  from ..backend_api.session.client import APIClient
  from ..debugging import get_logger
label_desc: Use image node_id 19 for calling the AutoScaler obj's underlying member method code with example usage: obj.instance_log_thread(instance_id) without return types