fix: filter commented out functions when generating plugin file

examples/demo-with-py-plugin/debugtalk.py

@@ -3,6 +3,11 @@ import time
 from typing import List
 
 
+# commented out function will be filtered
+# def get_headers():
+#     return {"User-Agent": "hrp"}
+
+
 def get_user_agent():
     return "hrp/funppy"