Update app.py

app.py

@@ -9,7 +9,7 @@ import torch
 from diffusers import StableDiffusionPipeline
 from diffusers import StableDiffusionInstructPix2PixPipeline, EulerAncestralDiscreteScheduler
 from langchain.agents.initialize import initialize_agent
-from langchain.agents.tools import Tool
+from langchain_core.tools import Tool
 from langchain.chains.conversation.memory import ConversationBufferMemory
 from langchain.llms.openai import OpenAI
 import re