code: def testXxdOutputToBytes(self):
      # 1. SETUP
      # Define the initial model
      initial_model = test_utils.build_mock_model()
      initial_bytes = flatbuffer_utils.convert_object_to_bytearray(
          initial_model
      )
  
      # Define temporary files
      tmp_dir = self.get_temp_dir()
      model_filename = os.path.join(tmp_dir, "model.tflite")
  
      # 2. Write model to temporary file (will be used as input for xxd)
      flatbuffer_utils.write_model(initial_model, model_filename)
  
      # 3. DUMP WITH xxd
      input_cc_file = os.path.join(tmp_dir, "model.cc")
  
      command = "xxd -i {} > {}".format(model_filename, input_cc_file)
      subprocess.call(command, shell=True)
  
      # 4. VALIDATE
      final_bytes = flatbuffer_utils.xxd_output_to_bytes(input_cc_file)
      if sys.byteorder == "big":
          final_bytes = flatbuffer_utils.byte_swap_tflite_buffer(
              final_bytes, "little", "big"
          )
  
      # Validate that the initial and final bytearray are the same
      self.assertEqual(initial_bytes, final_bytes)
  
imports: import copy
  import os
  import subprocess
  import sys
  from tensorflow.lite.tools import flatbuffer_utils
  from tensorflow.lite.tools import test_utils
  from tensorflow.python.framework import test_util
  from tensorflow.python.platform import test
label_desc: Use image node_id 1 for calling the XxdOutputToBytesTest obj's underlying member method code with example usage: obj.testXxdOutputToBytes() without return types