Update app.py

app.py

@@ -24,6 +24,8 @@ from langchain.prompts import PromptTemplate
 from langchain.text_splitter import RecursiveCharacterTextSplitter
 from langchain_community.vectorstores import Chroma
 from chromadb.errors import InvalidDimensionException
+from langchain import HuggingFacePipeline
+from transformers import pipeline
 from utils import *
 from beschreibungen import *