Update app.py

app.py

@@ -2,6 +2,8 @@ from haystack.document_stores import InMemoryDocumentStore
 from haystack.nodes import PromptNode, PromptTemplate, AnswerParser, BM25Retriever
 from haystack.pipelines import Pipeline
 from haystack.utils import print_answers
+import chainlit as cl
+from datasets import load_dataset
 import os
 from dotenv import load_dotenv
 #load the dataset