println('${m['sender']} -> ${c['msgtype']} ${c['body']}')

			body := c['body'].str()
			room_id := c['room_id'].str()
			println('${m['sender']} -> ${c['msgtype']} $body')
			if body.starts_with("!") {
			  self.command(room_id, body[1..])
			}

fn (mut self Main) command(room_id string, cmd string) {
  self.matrix.room_say(room_id, "I hear $cmd")
}