title: Send sticker (using file_id, not url) with Telegram and BotFramework
body: <p>Unable to send sticker using "file_id". Documentation on <a href="https://docs.microsoft.com/en-us/azure/bot-service/dotnet/bot-builder-dotnet-channeldata?view=azure-bot-service-3.0" rel="nofollow noreferrer">docs.microsoft.com</a> comes only with sample using "url"</p>
  
  <p>Trying to send like this:</p>
  
  <pre><code>activity.ChannelData = new { method = "sendSticker", parameters = new { sticker = new { file_id = "CAADAgADmwEAAoo0zQirH-KhlK1ZMwI", width = 512, height = 355 } } };
  await connector.Conversations.ReplyToActivityAsync(activity);
  </code></pre>
  
  <p>but it does not work.</p>