code: def setUp(self):
      self.model_tester = FlaxWav2Vec2ModelTester(self)
  
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 1 for calling the FlaxWav2Vec2ModelTest obj's underlying member method code with example usage: obj.setUp() without return types