code: def test_autoformer_forecaster_import(self):
      from bigdl.chronos.forecaster.pytorch import AutoformerForecaster
  
      assert isinstance(AutoformerForecaster, LazyImport)
  
      from bigdl.chronos.forecaster.autoformer_forecaster import (
          AutoformerForecaster,
      )
  
      autoformer = AutoformerForecaster(
          past_seq_len=48,
          future_seq_len=5,
          input_feature_num=1,
          output_feature_num=1,
          label_len=12,
          freq="s",
      )
      assert not isinstance(autoformer, LazyImport)
      assert isinstance(autoformer, AutoformerForecaster)
  
file_path: BigDL/python/chronos/test/bigdl/chronos/forecaster/test_pytorch.py
imports: from unittest import TestCase
  from bigdl.chronos.utils import LazyImport
  from ..None import op_torch
label_desc: Use image node_id 7 for calling the TestChronosModelPytorch obj's underlying member method code with example usage: obj.test_autoformer_forecaster_import() without return types