fixed embeddings loading

app.py

@@ -36,8 +36,17 @@ def load_from_azure(container_name, local_dir="./index"):
 load_from_azure("blobcontaineravatarbot")
 
 # Load into FAISS
-embeddings="intfloat/e5-base-v2"
-vectorstore = FAISS.load_local("./index", embeddings, allow_dangerous_deserialization=True)
+from langchain_community.embeddings import HuggingFaceEmbeddings # deprecated
+# from langchain_huggingface import HuggingFaceEmbeddings
+
+embedding_model = HuggingFaceEmbeddings(
+    model_name="intfloat/e5-base-v2",
+    # multi_process=True,
+    model_kwargs={"device": "mps"},  # use cuda for faster embeddings on nbidia GPUs
+    encode_kwargs={"normalize_embeddings": True},  # Set `True` for cosine similarity
+)
+
+vectorstore = FAISS.load_local("./index", embedding_model, allow_dangerous_deserialization=True)
 
 # Include a rate limiter
 from collections import defaultdict