code: def test_path_join(expected_output, input_args):
      assert s3.s3_path_join(*input_args) == expected_output
  
file_path: sagemaker-python-sdk/tests/unit/test_s3.py
imports: from __future__ import absolute_import
  import os
  import pytest
  from mock import Mock
  from sagemaker import s3
label_desc: Use image node_id 8 for calling a global function with example usage: test_path_join(expected_output, input_args) without return types