Update app.py

app.py

@@ -6,6 +6,7 @@ from streamlit_drawable_canvas import st_canvas
 import torch
 from diffusers import AutoPipelineForInpainting
 import numpy as np
+from langchain.text_splitter import RecursiveCharacterTextSplitter
 from langchain.schema import Document
 from sentence_transformers import SentenceTransformer,util
 from streamlit_image_select import image_select