replaced old deprecated decorator

telebot/util.py

@@ -420,7 +420,7 @@ def generate_random_token():
     return ''.join(random.sample(string.ascii_letters, 16))
 
 
-def deprecated_dec(warn: bool=False, alternative: Optional[Callable]=None):
+def deprecated(warn: bool=False, alternative: Optional[Callable]=None):
     """
     Use this decorator to mark functions as deprecated.
     When the function is used, an info (or warning if `warn` is True) is logged.
@@ -439,18 +439,3 @@ def deprecated_dec(warn: bool=False, alternative: Optional[Callable]=None):
         return wrapper
     return decorator
 
-
-def deprecated(func):
-    """This is a decorator which can be used to mark functions
-    as deprecated. It will result in a warning being emitted
-    when the function is used."""
-    # https://stackoverflow.com/a/30253848/441814
-    @functools.wraps(func)
-    def new_func(*args, **kwargs):
-        warnings.simplefilter('always', DeprecationWarning)  # turn off filter
-        warnings.warn("Call to deprecated function {}.".format(func.__name__),
-                      category=DeprecationWarning,
-                      stacklevel=2)
-        warnings.simplefilter('default', DeprecationWarning)  # reset filter
-        return func(*args, **kwargs)
-    return new_func