code: def __init__(self):
      super(ThModel, self).__init__()
      self.a = torch.nn.Linear(3, 1)
  
file_path: espnet/test/test_optimizer.py
imports: import chainer
  import numpy
  import pytest
  import torch
  from espnet.optimizer.factory import dynamic_import_optimizer
  from espnet.optimizer.pytorch import OPTIMIZER_FACTORY_DICT
label_desc: Use image node_id 1 to create a new ThModel object from inherited base classes: torch.nn with example: obj = ThModel()