task::block_on(async {
		let mut reply_to: Option<telegram_bot::UserId>;
		loop {
			reply_to = None;
			match stream.next().await {
				Some(update) => {
					if let Err(err) = handle(update?, &core, &reply_to).await {
						core.send(&format!("🛑 {:?}", err), reply_to, None).await?;
					};
				},
				None => {
					core.send("🛑 None error.", None, None).await?;
				}
			};
		}