code: def test_export_tflite(self):
      export_path = os.path.join(self.get_temp_dir(), "export/")
      self._model.export_tflite(export_dir=export_path)
      self._check_nonempty_file(
          os.path.join(export_path, "model.tflite")
      )
  
file_path: mediapipe/mediapipe/model_maker/python/core/tasks/custom_model_test.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import os
  import tensorflow
  from mediapipe.model_maker.python.core.tasks import custom_model
  from mediapipe.model_maker.python.core.utils import test_util
label_desc: Use image node_id 3 for calling the CustomModelTest obj's underlying member method code with example usage: obj.test_export_tflite() without return types