Get the total count of photos for a chat.Usable by Users Bots
str) – Unique identifier (int) or username (str) of the target chat. For your personal cloud (Saved Messages) you can simply use “me” or “self”. For a contact that exists in your Telegram address book you can use his phone number (str).
int– On success, the user profile photos count is returned.
count = await app.get_chat_photos_count("me") print(count)