final adding

argenta/app/exceptions.py

@@ -3,16 +3,6 @@ class InvalidRouterInstanceException(Exception):
         return "Invalid Router Instance"
 
 
-class InvalidDescriptionMessagePatternException(Exception):
-    def __init__(self, pattern: str):
-        self.pattern = pattern
-    def __str__(self):
-        return ("Invalid Description Message Pattern\n"
-                "Correct pattern example: [{command}] *=*=* {description}\n"
-                "The pattern must contain two variables: `command` and `description` - description of the command\n"
-                f"Your pattern: {self.pattern}")
-
-
 class NoRegisteredRoutersException(Exception):
     def __str__(self):
         return "No Registered Router Found"