Update agent.py

agent.py

@@ -2,7 +2,7 @@ from mapi_tools import MAPI_class_tools, MAPI_reg_tools
 from utils import common_tools
 from reaction_prediction import SynthesisReactions
 from langchain import OpenAI
-from llama_index import GPTListIndex, GPTIndexMemory
+from gpt_index import GPTListIndex, GPTIndexMemory
 from langchain import agents
 from langchain.agents import initialize_agent