code: def resource(filename):
      return os.path.join(_test_dir, filename)
  
imports: from typing import Callable, TypeVar
  from typing_extensions import ParamSpec
  import os
  from timeit import default_timer
  import unittest
  import pytest
  from hailtop.hail_decorator import decorator
  from hail.utils.java import choose_backend
  import hail
label_desc: Use image node_id 3 for calling a global function with example usage: resource(filename) and returns: os