Update app.py

app.py

@@ -1,12 +1,13 @@
 from sentence_transformers import SentenceTransformer
-from langchain.prompts import ChatPromptTemplate
-from langchain.schema import AIMessage, HumanMessage
+from langchain_core.prompts import ChatPromptTemplate
+from langchain_core.messages import AIMessage, HumanMessage
 from langchain_chroma import Chroma
 import gradio as gr
 from huggingface_hub import InferenceClient
 import os
-
 import shutil
+
+
 shutil.rmtree("/root/.cache", ignore_errors=True)
 shutil.rmtree("/tmp", ignore_errors=True)