Added the ability to set different bot descriptions for different user languages using the method setMyDescription.

telebot/__init__.py

@@ -3400,6 +3400,24 @@ class TeleBot:
         """
         result = apihelper.get_my_commands(self.token, scope, language_code)
         return [types.BotCommand.de_json(cmd) for cmd in result]
+    
+    def set_my_description(self, description: Optional[str]=None, language_code: Optional[str]=None):
+        """
+        Use this method to change the bot's description, which is shown in
+        the chat with the bot if the chat is empty.
+        Returns True on success.
+
+        :param description: New bot description; 0-512 characters. Pass an empty string to remove the dedicated description for the given language.
+        :type description: :obj:`str`
+
+        :param language_code: A two-letter ISO 639-1 language code. If empty, the description will be applied to all users for
+            whose language there is no dedicated description.
+        :type language_code: :obj:`str`
+
+        :return: True on success.
+        """
+
+        return apihelper.set_my_description(self.token, description, language_code)
 
     def set_chat_menu_button(self, chat_id: Union[int, str]=None, 
                 menu_button: types.MenuButton=None) -> bool:

telebot/apihelper.py

@@ -1152,6 +1152,15 @@ def set_chat_title(token, chat_id, title):
     return _make_request(token, method_url, params=payload, method='post')
 
 
+def set_my_description(token, description=None, language_code=None):
+    method_url = r'setMyDescription'
+    payload = {}
+    if description:
+        payload['description'] = description
+    if language_code:
+        payload['language_code'] = language_code
+    return _make_request(token, method_url, params=payload, method='post')
+
 def get_my_commands(token, scope=None, language_code=None):
     method_url = r'getMyCommands'
     payload = {}

telebot/async_telebot.py

@@ -4238,6 +4238,24 @@ class AsyncTeleBot:
         """
         return await asyncio_helper.delete_chat_photo(self.token, chat_id)
     
+    async def set_my_description(self, description: Optional[str]=None, language_code: Optional[str]=None):
+        """
+        Use this method to change the bot's description, which is shown in
+        the chat with the bot if the chat is empty.
+        Returns True on success.
+
+        :param description: New bot description; 0-512 characters. Pass an empty string to remove the dedicated description for the given language.
+        :type description: :obj:`str`
+
+        :param language_code: A two-letter ISO 639-1 language code. If empty, the description will be applied to all users for
+            whose language there is no dedicated description.
+        :type language_code: :obj:`str`
+
+        :return: True on success.
+        """
+
+        return await asyncio_helper.set_my_description(self.token, description, language_code)
+    
     async def get_my_commands(self, scope: Optional[types.BotCommandScope], 
             language_code: Optional[str]) -> List[types.BotCommand]:
         """

telebot/asyncio_helper.py

@@ -1138,6 +1138,14 @@ async def set_chat_title(token, chat_id, title):
     payload = {'chat_id': chat_id, 'title': title}
     return await _process_request(token, method_url, params=payload, method='post')
 
+async def set_my_description(token, description=None, language_code=None):
+    method_url = r'setMyDescription'
+    payload = {}
+    if description:
+        payload['description'] = description
+    if language_code:
+        payload['language_code'] = language_code
+    return await _process_request(token, method_url, params=payload, method='post')
 
 async def get_my_commands(token, scope=None, language_code=None):
     method_url = r'getMyCommands'