code: def _exportEvalSavedModel(self, classifier):
      temp_eval_export_dir = os.path.join(
          self._getTempDir(), "eval_export_dir"
      )
      _, eval_export_dir = classifier(None, temp_eval_export_dir)
      return eval_export_dir
  
imports: import os
  import tempfile
  import apache_beam
  from apache_beam.testing import util
  import numpy
  import tensorflow
  from tensorflow_model_analysis import constants
  from tensorflow_model_analysis.api import model_eval_lib
  from tensorflow_model_analysis.api import types
  from tensorflow_model_analysis.contrib import model_eval_lib
  from tensorflow_model_analysis.eval_saved_model import testutil
  from tensorflow_model_analysis.eval_saved_model.example_trainers import linear_classifier
  from tensorflow_model_analysis.slicer import slicer_lib
label_desc: Use image node_id 2 for calling the BuildAnalysisTableTest obj's underlying member method code with example usage: obj._exportEvalSavedModel(classifier) and returns: eval_export_dir