Added description of the ApiTelegramException as attribute of the class

.gitignore

@@ -25,6 +25,7 @@ var/
 
 .idea/
 venv/
+.venv/
 
 # PyInstaller
 #  Usually these files are written by a python script from a template

telebot/apihelper.py

@@ -1661,4 +1661,5 @@ class ApiTelegramException(ApiException):
             result)
         self.result_json = result_json
         self.error_code = result_json['error_code']
+        self.description = result_json['description']