Update app.py

app.py

@@ -14,6 +14,7 @@ import pickle
 from langchain.agents import AgentType, initialize_agent
 from langchain.memory import ConversationBufferMemory
 from langchain.llms import HuggingFaceHub
+from langchain_huggingface import ChatHuggingFace, HuggingFaceEndpoint
 from langchain.tools import Tool
 # Load the CSV data as a DataFrame
 df = pd.read_csv("hf://datasets/kshitij230/Indian-Law/Indian-Law.csv")