Custom filters upd

telebot/util.py

@@ -5,6 +5,7 @@ import string
 import threading
 import traceback
 from typing import Any, Callable, List, Dict, Optional, Union
+from abc import ABC
 
 # noinspection PyPep8Naming
 import queue as Queue
@@ -457,20 +458,20 @@ def webhook_google_functions(bot, request):
         return 'Bot ON'
 
 
-class SimpleCustomFilter:
+class SimpleCustomFilter(ABC):
     """
     Simple Custom Filter base class.
     Create child class with check() method.
     Accepts only bool.
     """
 
-    def check(message):
+    def check(self, message):
         """
         Perform a check.
         """
         pass
 
-class AdvancedCustomFilter:
+class AdvancedCustomFilter(ABC):
     """
     Simple Custom Filter base class.
     Create child class with check() method.
@@ -479,8 +480,8 @@ class AdvancedCustomFilter:
     text: Filter value given in handler
     """
 
-    def check(message, text):
+    def check(self, message, text):
         """
         Perform a check.
         """
-        pass
+        pass