diff --git a/__init__.py b/__init__.py
index 1edfbf5..ae3fdd4 100644
--- a/__init__.py
+++ b/__init__.py
@@ -167,16 +167,17 @@ class JsonFormatter(logging.Formatter):
         return json.dumps(obj)
 
 
-def add_handler_stdout(logger: logging.Logger, level: int=logging.WARNING, fmt: str=DEFAULT_FMT):
+def add_handler_stdout(logger: logging.Logger, level: int = logging.WARNING, fmt: str = DEFAULT_FMT) -> logging.StreamHandler:
     logger.setLevel(logging.DEBUG)
     #
     handler = logging.StreamHandler(sys.stdout)
     handler.setFormatter(logging.Formatter(fmt))
     handler.setLevel(level)
     logger.addHandler(handler)
+    return handler
 
 
-def add_handler_file(logger: logging.Logger, filename: str, maxMbytes: int, backupCount: int, level: int=logging.DEBUG, fmt: str=DEFAULT_FMT):
+def add_handler_file(logger: logging.Logger, filename: str, maxMbytes: int, backupCount: int, level: int = logging.DEBUG, fmt: str = DEFAULT_FMT) -> logging.handlers.RotatingFileHandler:
     if maxMbytes < 1:
         raise ValueError(f"The parameter maxMbytes needs to be >= 1. maxMbytes={maxMbytes}")
     if backupCount < 1:
@@ -188,14 +189,16 @@ def add_handler_file(logger: logging.Logger, filename: str, maxMbytes: int, back
     handler.setFormatter(logging.Formatter(fmt))
     handler.setLevel(level)
     logger.addHandler(handler)
+    return handler
 
 
-def add_handler_socket(logger: logging.Logger, level: int=logging.DEBUG, host: str="localhost", port: int=19996):
+def add_handler_socket(logger: logging.Logger, level: int = logging.DEBUG, host: str = "localhost", port: int = 19996) -> logging.handlers.SocketHandler:
     logger.setLevel(logging.DEBUG)
     #
     handler = logging.handlers.SocketHandler(host, port)
     handler.setLevel(level)
     logger.addHandler(handler)
+    return handler
 
 
 def appLoggingConfigure(basepath, target, log_name_lvl=[], target_level=logging.DEBUG, fmt=SHORT_FMT, ring_logs=None, host=None, port=None):