code: def test_softmax(self):
      inp = torch.tensor([[-2.0, -0.5], [0.5, 2.0]])
      self.check(torch.nn.Softmax(), inp)
      self.check(torch.nn.Softmax(dim=0), inp)
      # Test flexible size
      self.check(
          torch.nn.Softmax(),
          inp,
          convert_args=[torch.zeros(0, 0)],
      )
  
imports: import os
  import ctypes
  import torch
  import unittest
  from typing import Tuple
  from torch.backends._nnapi.prepare import convert_model_to_nnapi
  from torch.testing._internal.common_quantized import supported_qengines
  from torch.testing._internal.common_utils import TestCase, run_tests
label_desc: Use image node_id 18 for calling the TestNNAPI obj's underlying member method code with example usage: obj.test_softmax() without return types