code: def test_mnist_model_register_using_non_existent_handler_with_nonzero_workers():
      """
      Validates that a model cannot be registered with a non existent handler if
      the initial number of workers is greater than zero.
      """
  
      response = requests.post(
          TF_MANAGEMENT_API
          + "/models?handler=nehandlermodels&initial_workers=1&url=mnist.mar"
      )
      if (
          json.loads(response.content)["code"] == 500
          and json.loads(response.content)["type"]
          == "InternalServerException"
      ):
          assert True, (
              "Internal Server Exception, "
              "Cannot register model with non existent handler with non zero workers"
          )
      else:
          assert False, (
              "Something is not right!! Successfully registered model with "
              "non existent handler with non zero workers"
          )
  
      test_utils.unregister_model("mnist")
  
imports: import ast
  import json
  import logging
  import os
  import numpy
  import pytest
  import requests
  import test_utils
  import torch
label_desc: Use image node_id 10 for calling a global function with example usage: test_mnist_model_register_using_non_existent_handler_with_nonzero_workers() without return types