Update app.py

app.py

@@ -66,9 +66,14 @@ pc = Pinecone(api_key=PINECONE_API_KEY)
 vector_store = Pinecone.from_existing_index(index_name=INDEX_NAME, embedding=embeddings)
 
 # Load LLM & Memory
-llm = ChatAnthropic(model="claude-2", temperature=0, Anthropic_API_Key=os.getenv("Anthropic_API_Key")
+llm = ChatAnthropic(
+    model="claude-2", 
+    temperature=0, 
+    Anthropic_API_Key=os.getenv("Anthropic_API_Key")  
+)
 memory = ConversationBufferMemory(memory_key="chat_history", return_messages=True)
 
+
 # Build RAG Chain
 qa_chain = ConversationalRetrievalChain.from_llm(
     llm=llm,