code: def test_model_from_pretrained(self):
      for model_class_name in self.all_model_classes:
          model = model_class_name.from_pretrained(
              "facebook/wav2vec2-large-960h-lv60-self", from_pt=True
          )
          outputs = model(np.ones((1, 1024), dtype="f4"))
          self.assertIsNotNone(outputs)
  
imports: import inspect
  import math
  import multiprocessing
  import os
  import traceback
  import unittest
  import numpy
  from datasets import load_dataset
  from transformers import Wav2Vec2Config, is_flax_available
  from transformers.testing_utils import CaptureLogger, is_flaky, is_librosa_available, is_pt_flax_cross_test, is_pyctcdecode_available, require_flax, require_librosa, require_pyctcdecode, require_soundfile, run_test_in_subprocess, slow
  from ...test_modeling_flax_common import FlaxModelTesterMixin, floats_tensor, random_attention_mask
label_desc: Use image node_id 6 for calling the FlaxWav2Vec2ModelTest obj's underlying member method code with example usage: obj.test_model_from_pretrained() without return types