def make_json(self):
        time_fmt = "%c"
        d = {"subject":self.subject,"content":self.content,
                "created":self.created.strftime(time_fmt),
                "last_modified":self.last_modified.strftime(time_fmt)}
        return d

    def make_dict(self):
        time_format = "%c"
        d = {
                "subject":self.subject,"content":self.content,
                "created":self.created.strftime(time_format),
                "last_modified":self.last_modified.strftime(time_format)
            }
        return d