diff --git a/examples/debate.py b/examples/debate.py
index 72ab8796d..56df16b4f 100644
--- a/examples/debate.py
+++ b/examples/debate.py
@@ -5,6 +5,7 @@ Author: garylin2099
 @Modified By: mashenquan, 2023-11-1. In accordance with Chapter 2.1.3 of RFC 116, modify the data type of the `send_to`
         value of the `Message` object; modify the argument type of `get_by_actions`.
 """
+
 import asyncio
 import platform
 from typing import Any
@@ -105,4 +106,4 @@ def main(idea: str, investment: float = 3.0, n_round: int = 10):
 
 
 if __name__ == "__main__":
-    fire.Fire(main)
+    fire.Fire(main)  # run as python debate.py --idea="TOPIC" --investment=3.0 --n_round=5
diff --git a/examples/search_with_specific_engine.py b/examples/search_with_specific_engine.py
index 97b1378ee..1eee762d5 100644
--- a/examples/search_with_specific_engine.py
+++ b/examples/search_with_specific_engine.py
@@ -4,21 +4,17 @@
 """
 import asyncio
 
+from metagpt.config2 import Config
 from metagpt.roles import Searcher
-from metagpt.tools.search_engine import SearchEngine, SearchEngineType
+from metagpt.tools.search_engine import SearchEngine
 
 
 async def main():
     question = "What are the most interesting human facts?"
-    kwargs = {"api_key": "", "cse_id": "", "proxy": None}
-    # Serper API
-    # await Searcher(search_engine=SearchEngine(engine=SearchEngineType.SERPER_GOOGLE, **kwargs)).run(question)
-    # SerpAPI
-    # await Searcher(search_engine=SearchEngine(engine=SearchEngineType.SERPAPI_GOOGLE, **kwargs)).run(question)
-    # Google API
-    # await Searcher(search_engine=SearchEngine(engine=SearchEngineType.DIRECT_GOOGLE, **kwargs)).run(question)
-    # DDG API
-    await Searcher(search_engine=SearchEngine(engine=SearchEngineType.DUCK_DUCK_GO, **kwargs)).run(question)
+
+    search = Config.default().search
+    kwargs = {"api_key": search.api_key, "cse_id": search.cse_id, "proxy": None}
+    await Searcher(search_engine=SearchEngine(engine=search.api_type, **kwargs)).run(question)
 
 
 if __name__ == "__main__":