code: def test_model_from_pretrained(self):
      model = UniSpeechModel.from_pretrained(
          "microsoft/unispeech-large-1500h-cv"
      )
      self.assertIsNotNone(model)
  
imports: import math
  import unittest
  import numpy
  import pytest
  from datasets import load_dataset
  from transformers import UniSpeechConfig, is_torch_available
  from transformers.testing_utils import require_soundfile, require_torch, slow, torch_device
  from ...test_configuration_common import ConfigTester
  from ...test_modeling_common import ModelTesterMixin, _config_zero_init, floats_tensor, ids_tensor, random_attention_mask
label_desc: Use image node_id 21 for calling the UniSpeechRobustModelTest obj's underlying member method code with example usage: obj.test_model_from_pretrained() without return types