Update app.py

app.py

@@ -11,11 +11,10 @@ from langchain.chains import ConversationChain
 from langchain.memory import ConversationBufferMemory
 from langchain_community.llms import HuggingFaceEndpoint
 from langchain_google_vertexai import VertexAI
-
+import vertexai
 from pathlib import Path
 import chromadb
 from unidecode import unidecode
-
 from transformers import AutoTokenizer
 import transformers
 import torch