Update app.py

app.py

@@ -1,7 +1,7 @@
 import streamlit as st
 from PIL import Image
 from diffusers import StableDiffusionPipeline, ControlNetModel, DDIMScheduler, LMSDiscreteScheduler, UNet2DConditionModel, DiffusionPipeline
-from diffusers.optimization import DDPMScheduler, DDPMSchedulerV2, PNDMScheduler
+from diffusers import DDPMScheduler, DDPMSchedulerV2, PNDMScheduler
 from transformers import AutoModelForCausalLM, AutoTokenizer, AutoModelForSeq2SeqLM, LlamaTokenizerFast, LlamaForCausalLM
 from accelerate import Accelerator
 import torch