code: def __call__(self, image_url: str):
      image_bytes = requests.get(image_url).content
      return Image.open(BytesIO(image_bytes)).convert("RGB")
  
imports: import ray
  from ray import serve
  from ray.serve.config import gRPCOptions
  import time
  from typing import Generator
  from user_defined_protos_pb2 import UserDefinedMessage, UserDefinedMessage2, UserDefinedResponse, UserDefinedResponse2
  import ray
  from ray import serve
  import grpc
  from user_defined_protos_pb2_grpc import UserDefinedServiceStub
  from user_defined_protos_pb2 import UserDefinedMessage
  import grpc
  from ray.serve.generated.serve_pb2_grpc import RayServeAPIServiceStub
  from ray.serve.generated.serve_pb2 import HealthzRequest, ListApplicationsRequest
  import grpc
  from user_defined_protos_pb2_grpc import UserDefinedServiceStub
  from user_defined_protos_pb2 import UserDefinedMessage2
  import grpc
  from user_defined_protos_pb2_grpc import UserDefinedServiceStub
  from user_defined_protos_pb2 import UserDefinedMessage
  import requests
  import torch
  from typing import List
  from PIL import Image
  from io import BytesIO
  from torchvision import transforms
  from user_defined_protos_pb2 import ImageClass, ImageData
  from ray import serve
  from ray.serve.handle import DeploymentHandle
  import grpc
  from user_defined_protos_pb2_grpc import ImageClassificationServiceStub
  from user_defined_protos_pb2 import ImageData
  import grpc
  from user_defined_protos_pb2_grpc import UserDefinedServiceStub
  from user_defined_protos_pb2 import UserDefinedMessage
  from user_defined_protos_pb2 import UserDefinedMessage, UserDefinedResponse
  from ray import serve
  from ray.serve.grpc_util import RayServegRPCContext
  import grpc
  from typing import Tuple
  import grpc
  from user_defined_protos_pb2_grpc import UserDefinedServiceStub
  from user_defined_protos_pb2 import UserDefinedMessage
label_desc: Use image node_id 1 for calling the ImageDownloader obj's underlying member method code with example usage: obj.__call__(image_url) and returns: Image