code: def setUp(self):
      super().setUp()
      with open(_IMAGE_CLASSIFIER_MODEL, "rb") as f:
          self.image_classifier_model_buffer = f.read()
  
imports: import os
  import tempfile
  from absl.testing import absltest
  from mediapipe.tasks.metadata import metadata_schema_py_generated
  from mediapipe.tasks.python.metadata.metadata_writers import metadata_info
  from mediapipe.tasks.python.metadata.metadata_writers import metadata_writer
  from mediapipe.tasks.python.test import test_utils
label_desc: Use image node_id 1 for calling the MetadataWriterForTaskTest obj's underlying member method code with example usage: obj.setUp() without return types