Update app.py

app.py

@@ -4,6 +4,8 @@ from langchain_text_splitters import TokenTextSplitter
 from langchain.docstore.document import Document
 from torch import cuda
 from langchain_community.embeddings import HuggingFaceEmbeddings, HuggingFaceInferenceAPIEmbeddings
+from langchain_community.vectorstores import Qdrant
+from qdrant_client import QdrantClient
 device = 'cuda' if cuda.is_available() else 'cpu'