fully typed project

app/logger.py

@@ -4,17 +4,17 @@ import utils
 
 _console_lock = threading.Lock()
 
-def _log(prefix: str, message: str):
+def _log(prefix: str, message: str) -> None:
     time = utils.format_datetime("%H:%M:%S")
     with _console_lock:
         print(f"[{time}] {prefix} {message}")
 
-def info(message: str):
+def info(message: str) -> None:
     _log("INFO", message)
 
-def warning(message: str):
+def warning(message: str) -> None:
     _log("WARNING", message)
 
-def error(message: str):
+def error(message: str) -> None:
     _log("ERROR", message)
     sys.exit(1)