code: async def change_url(self, url: str, description: str = None):
          
          await self._change(url=url, description=description)
docs: change the url of that attachment
  
          |methcoro|
  
          Args:
              url: url you want to change
              description: *optional* description for your attachment
  
          Raises:
              ValueError: url must not be None
              APIException