code: def __init__(self, sleep_sec=0):
      super().__init__()
      self.mod = nn.Linear(10, 20)
      self.sleep_sec = sleep_sec
  
imports: import json
  import math
  import os
  import tempfile
  import time
  import unittest
  from unittest import mock
  import torch
  from fvcore.common.checkpoint import Checkpointer
  from torch import nn
  from detectron2 import model_zoo
  from detectron2.config import configurable, get_cfg
  from detectron2.engine import DefaultTrainer, SimpleTrainer, default_setup, hooks
  from detectron2.modeling.meta_arch import META_ARCH_REGISTRY
  from detectron2.utils.events import CommonMetricPrinter, JSONWriter
label_desc: Use image node_id 1 to create a new _SimpleModel object from inherited base classes: nn with example: obj = _SimpleModel(sleep_sec)