code: def test_simple_trainer(self, device="cpu"):
      model = _SimpleModel().to(device=device)
      trainer = SimpleTrainer(
          model,
          self._data_loader(device),
          torch.optim.SGD(model.parameters(), 0.1),
      )
      trainer.train(0, 10)
  
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 2 for calling the TestTrainer obj's underlying member method code with example usage: obj.test_simple_trainer(device) without return types