Update core_agent.py

core_agent.py

@@ -15,7 +15,8 @@ from langchain_google_genai import ChatGoogleGenerativeAI
 from langchain_core.messages import HumanMessage, SystemMessage
 from langchain_core.tools import tool
 from langchain_core.prompts import ChatPromptTemplate, MessagesPlaceholder
-from langchain.agents import AgentExecutor, create_tool_calling_agent
+from langchain.agents.agent import AgentExecutor
+from langchain.agents.tool_calling_agent.base import create_tool_calling_agent
 from langchain_community.chat_message_histories import ChatMessageHistory
 
 warnings.filterwarnings("ignore")