code: def get_saved_model_pb_path(export_dir):
      return file_io.join(
          compat.as_bytes(compat.path_to_str(export_dir)),
          compat.as_bytes(constants.SAVED_MODEL_FILENAME_PB),
      )
  
file_path: tensorflow-upstream/tensorflow/python/saved_model/path_helpers.py
imports: from tensorflow.python.lib.io import file_io
  from tensorflow.python.saved_model import constants
  from tensorflow.python.util import compat
label_desc: Use image node_id 8 for calling a global function with example usage: get_saved_model_pb_path(export_dir) and returns: file_io