"""运行 `pip install duckduckgo-search openai` 来安装依赖。"""from agno.agent import Agentfrom agno.storage.json import JsonStoragefrom agno.tools.duckduckgo import DuckDuckGoToolsagent = Agent( storage=JsonStorage(dir_path="tmp/agent_sessions_json"), tools=[DuckDuckGoTools()], add_history_to_messages=True,)agent.print_response("How many people live in Canada?")agent.print_response("What is their national anthem called?")