code: def test_put_bad_schema(ray_start_stop, put_url: str):
      config = {"not_a_real_field": "value"}
  
      put_response = requests.put(put_url, json=config, timeout=5)
      assert put_response.status_code == 400
  
imports: import copy
  import grpc
  import re
  import os
  import sys
  from typing import Dict
  import pytest
  import requests
  import ray
  from ray import serve
  from ray._private.test_utils import wait_for_condition
  import ray._private.ray_constants
  from ray.util.state import list_actors
  from ray.serve._private.constants import SERVE_NAMESPACE
  from ray.serve.tests.conftest import *
  from ray.tests.conftest import *
  from ray._private.test_utils import generate_system_config_map
  from ray.serve.schema import ServeInstanceDetails, HTTPOptionsSchema
  from ray.serve._private.common import ApplicationStatus, DeploymentStatus, DeploymentStatusTrigger, ReplicaState, ProxyStatus
  from ray.serve.generated import serve_pb2, serve_pb2_grpc
label_desc: Use image node_id 3 for calling a global function with example usage: test_put_bad_schema(ray_start_stop, put_url) without return types