from phi.agent import Agentfrom phi.tools.duckduckgo import DuckDuckGofrom phi.storage.agent.json import JsonFileAgentStorageagent = Agent( storage=JsonFileAgentStorage(path="tmp/agent_sessions_json"), tools=[DuckDuckGo()], add_history_to_messages=True,)agent.print_response("How many people live in Canada?")agent.print_response("What is their national anthem called?")