code: def mnist_model_register_using_non_existent_handler_then_scale_up(
      synchronous=False,
  ):
      """
      Validates that snapshot.cfg is created when management apis are invoked.
      """
      response = requests.post(
          TF_MANAGEMENT_API + "/models?handler=nehandler&url=mnist.mar"
      )
  
      # Scale up workers
      if synchronous:
          params = (
              ("min_worker", "2"),
              ("synchronous", "True"),
          )
      else:
          params = (("min_worker", "2"),)
  
      response = requests.put(
          TF_MANAGEMENT_API + "/models/mnist", params=params
      )
      # Check if workers got scaled
      response = requests.get(TF_MANAGEMENT_API + "/models/mnist")
      return response
  
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 4 for calling a global function with example usage: mnist_model_register_using_non_existent_handler_then_scale_up(synchronous) and returns: response