ìmport antispam.antispam; import vibe.data.json : parseJsonString; import std.algorithm.comparison : among; void main() {	auto config = parseJsonString(	`[	{"filter": "bayes"},	{"filter": "blacklist",	"settings": {	"ips": ["124.51.45.1", "41.23.11.5"]	}	}	]`);	auto antispam = new AntispamState;	antispam.loadConfig(config);	AntispamMessage msg;	msg.headers["Subject"] = "8uy CH34P V14GR4!!11";	msg.message = cast(const(ubyte)[])"Just look here: http://bestdrugdealz.c0m";	msg.peerAddress = ["123.52.433.1", "vps12315.some.provider.n3t"];	antispam.filterMessage!(	(status) {	if (status.among(SpamAction.revoke, SpamAction.block))	throw new Exception("Your message has been rejected!");	// otherwise store message...	},	(async_status) {	if (async_status.among!(SpamAction.revoke, SpamAction.block)) {	// Flag or delete the stored message.	}	// It could also theoretically happen here that async_status is amnesty	// or pass, so that a message that was already rejected in the first	// phase would be accepted in retrospective. You'll have to decides on	// a per-application basis if it makes sense to support this case, or	// if immediate rejections always have precedence.	}	)(msg); }