code: def test_set_environ_variable(self):
      os.environ["LOCAL_RANK"] = "1"
      os.environ["WORLD_SIZE"] = "4"
      os.environ["RANK"] = "3"
      os.environ["MASTER_ADDR"] = "314"
      os.environ["MASTER_PORT"] = "222"
  
      trainer_config = BaseTrainerConfig()
  
      assert int(trainer_config.local_rank) == 1
      assert int(trainer_config.world_size) == 4
      assert int(trainer_config.rank) == 3
      assert trainer_config.master_addr == "314"
      assert trainer_config.master_port == "222"
  
      del os.environ["LOCAL_RANK"]
      del os.environ["WORLD_SIZE"]
      del os.environ["RANK"]
      del os.environ["MASTER_ADDR"]
      del os.environ["MASTER_PORT"]
  
imports: import os
  from copy import deepcopy
  import pytest
  import torch
  from pythae.customexception import ModelError
  from pythae.models import AE, RHVAE, VAE, AEConfig, RHVAEConfig, VAEConfig
  from pythae.trainers import BaseTrainer, BaseTrainerConfig
  from tests.data.custom_architectures import *
label_desc: Use image node_id 1 for calling the Test_Device_Checks obj's underlying member method code with example usage: obj.test_set_environ_variable() without return types