code: def teardown_module():
      # Since there are two tests in one process, this is needed to make sure
      # the client exits properly.
      dgl.distributed.exit_client()
  
file_path: dgl/tests/distributed/test_dist_tensor.py
imports: import operator
  import os
  import unittest
  import backend
  import dgl
  import pytest
  from utils import create_random_graph, generate_ip_config, reset_envs
label_desc: Use image node_id 5 for calling a global function with example usage: teardown_module() without return types