code: def __init__(self, diffusion_model_handle) -> None:
      self.handle = diffusion_model_handle
  
file_path: ray/doc/source/templates/03_serving_stable_diffusion/app.py
imports: from io import BytesIO
  from ray import serve
  from fastapi import FastAPI
  from fastapi.responses import Response
  import torch
  from diffusers import EulerDiscreteScheduler, StableDiffusionPipeline
  import logging
label_desc: Use image node_id 1 to create a new APIIngress object  with example: obj = APIIngress(diffusion_model_handle)