code: def GoldenFile(filename):
      """Finds the given golden file and returns a file object representing it."""
  
      # Search up the directory tree looking for the C++ protobuf source code.
      path = "."
      while os.path.exists(path):
          if os.path.exists(
              os.path.join(path, "tests/google/protobuf/internal")
          ):
              # Found it.  Load the golden file from the testdata directory.
              full_path = os.path.join(
                  path, "tests/google/protobuf/internal", filename
              )
              return open(full_path, "rb")
          path = os.path.join(path, "..")
  
      raise RuntimeError(
          "Could not find golden files.  This test must be run from within the "
          "protobuf source package so that it can read test data files from the "
          "C++ source tree."
      )
  
file_path: turicreate/src/external/coremltools_wrap/coremltools/deps/protobuf/python/compatibility_tests/v2.5.0/tests/google/protobuf/internal/test_util.py
imports: import os.path
  from google.protobuf import unittest_import_pb2
  from google.protobuf import unittest_pb2
label_desc: Use image node_id 7 for calling a global function with example usage: GoldenFile(filename) and returns: open