code: def report_offline_session(cls, task, folder, iteration_offset=0):
      filename = Path(folder) / cls.__offline_filename
      if not filename.is_file():
          return False
      with open(filename.as_posix(), "rt") as f:
          i = 0
          while True:
              try:
                  line = f.readline()
                  if not line:
                      break
                  list_requests = json.loads(line)
                  for r in list_requests:
                      r.pop("task", None)
                      # noinspection PyBroadException
                      try:
                          r["iter"] += iteration_offset
                      except Exception:
                          pass
                  i += 1
              except StopIteration:
                  break
              except Exception as ex:
                  warning(
                      "Failed reporting log, line {} [{}]".format(i, ex)
                  )
              batch_requests = events.AddBatchRequest(
                  requests=[
                      events.TaskLogEvent(task=task.id, **r)
                      for r in list_requests
                  ]
              )
              if batch_requests.requests:
                  res = task.session.send(batch_requests)
                  if res and not res.ok():
                      warning(
                          "failed logging task to backend ({:d} lines, {})".format(
                              len(batch_requests.requests),
                              str(res.meta),
                          )
                      )
      return True
  
imports: import json
  import sys
  from pathlib2 import Path
  from logging import LogRecord, getLogger, basicConfig, getLevelName, INFO, WARNING, Formatter, makeLogRecord, warning
  from logging.handlers import BufferingHandler
  from .development.worker import DevWorker
  from ...backend_api.services import events
  from ...backend_api.session.session import MaxRequestSizeError
  from ...config import config
  from ...utilities.process.mp import BackgroundMonitor, ForkEvent, ForkQueue
  from ...utilities.process.mp import SafeQueue, SafeEvent
label_desc: Use image node_id 8 for calling the TaskHandler obj's underlying member method code with example usage: obj.report_offline_session(cls, task, folder, iteration_offset) and returns: True, False