code: def start(self, container: "MetadataContainer"):
      if not self._started:
          path = self._path
          fail_on_exception = self._fail_on_exception
  
          def log_traceback(stacktrace_lines: List[str]):
              container[path].log(stacktrace_lines)
              if fail_on_exception:
                  container[SYSTEM_FAILED_ATTRIBUTE_PATH] = True
  
          traceback_handler.register(self._uuid, log_traceback)
      self._started = True
  
file_path: neptune-client/src/neptune/internal/utils/traceback_job.py
imports: import logging
  import uuid
  from typing import TYPE_CHECKING, List, Optional
  from neptune.attributes.constants import SYSTEM_FAILED_ATTRIBUTE_PATH
  from neptune.internal.background_job import BackgroundJob
  from neptune.internal.utils.uncaught_exception_handler import instance
label_desc: Use image node_id 2 for calling the TracebackJob obj's underlying member method code with example usage: obj.start(container) without return types