@client.on(events.NewMessage(outgoing = True))
async def my_event_handler(event):
    if '!dice' in event.raw_text:
        try:
            wanted_dice = int(event.raw_text.split(" ")[1])
            await client.delete_messages(event.message.to_id, event.message.id)
            msg_id = await event.respond(file = InputMediaDice())
            while msg_id.media.value != wanted_dice:
                await client.delete_messages(event.message.to_id, msg_id.id)
                msg_id = await event.respond(file = InputMediaDice())
        except Exception as e:
            print(e)