...and numbers

src/validator.py

@@ -11,10 +11,10 @@ def is_valid_token(token: str) -> bool:
 	Validates the format ExponentPushToken[<22-letter-long-string>]
 	"""
 
-	pattern = r"^ExponentPushToken\[([A-Za-z]{22})\]$"
+	pattern = r"^ExponentPushToken\[([A-Za-z0-9]{22})\]$"
 	if not re.match(pattern, token):
 		return False
-	
+
 	return True