AGENT_DEPRECATION_WARNING = "LangChain agents will continue to be supported, but it is recommended for new use cases to be built with LangGraph. LangGraph offers a more flexible and full-featured framework for building agents, including support for tool-calling, persistence of state, and human-in-the-loop workflows. For details, refer to the [LangGraph documentation](
https://langchain-ai.github.io/langgraph/) as well as guides for [Migrating from AgentExecutor](https://python.langchain.com/docs/how_to/migrate_agent/) and LangGraph's [Pre-built ReAct agent](https://langchain-ai.github.io/langgraph/how-tos/create-react-agent/
)."