code: def test_torchserve_init_with_non_existent_model_store():
      """Validates that Torchserve fails to start if the model store directory is non existent"""
  
      test_utils.start_torchserve(
          model_store="/invalid_model_store",
          snapshot_file=None,
          no_config_snapshots=True,
      )
      try:
          response = requests.get("http://127.0.0.1:8081/models/")
      except:
          assert (
              True
          ), "Failed to start Torchserve using non existent model-store directory"
      else:
          assert False, (
              "Something is not right!! Successfully started Torchserve "
              "using non existent directory!!"
          )
      finally:
          test_utils.delete_model_store()
          test_utils.delete_all_snapshots()
  
imports: import platform
  import time
  import os
  import glob
  import requests
  import json
  import test_utils
label_desc: Use image node_id 13 for calling a global function with example usage: test_torchserve_init_with_non_existent_model_store() without return types