Update app.py

app.py

@@ -3,7 +3,7 @@ from langchain.docstore.document import Document as LangchainDocument
 from langchain.text_splitter import RecursiveCharacterTextSplitter
 from sentence_transformers import SentenceTransformer
 from langchain_community.embeddings import HuggingFaceEmbeddings
-from langchain_community.vectorstores import FAISS
+from langchain_community.vectorstores import faiss
 from langchain.prompts import PromptTemplate
 #from langchain.chains import ConversationalRetrievalChain
 #from transformers import pipeline
@@ -44,7 +44,7 @@ data = dataset["train"]
 print(data)
 d = 384  # vectors dimension
 m = 32  # hnsw parameter. Higher is more accurate but takes more time to index (default is 32, 128 should be ok)
-index = FAISS.IndexHNSWFlat(d, m, FAISS.METRIC_INNER_PRODUCT)
+index = faiss.IndexHNSWFlat(d, m, faiss.METRIC_INNER_PRODUCT)
 data = data.add_faiss_index("embeddings", custom_index=index) 
 # adds an index column that for the embeddings