A property that returns an array of role IDs matched with
        the syntax of <@&role_id> in the message content.

def raw_role_mentions(self):
        """A property that returns an array of role IDs matched with
        the syntax of <@&role_id> in the message content.
        """
        return [int(x) for x in re.findall(r'<@&([0-9]+)>', self.content)]