Start using the new Sender and Chat Getter interface

telethon_examples/interactive_telegram_client.py

@@ -371,7 +371,7 @@ class InteractiveTelegramClient(TelegramClient):
         # with events. Since they are methods, you know they may make an API
         # call, which can be expensive.
         chat = await event.get_chat()
-        if event.is_group:
+        if chat.is_group:
             if event.out:
                 sprint('>> sent "{}" to chat {}'.format(
                     event.text, get_display_name(chat)

telethon_examples/replier.py

@@ -78,7 +78,7 @@ async def handler(event):
     # and we said "save pic" in the message
     if event.out and event.is_reply and 'save pic' in event.raw_text:
         reply_msg = await event.get_reply_message()
-        replied_to_user = await reply_msg.get_input_sender()
+        replied_to_user = reply_msg.sender
 
         message = await event.reply('Downloading your profile photo...')
         file = await client.download_profile_photo(replied_to_user)