parseNumeric

 //Numeric.RPL_MONOFFLINE
	import std.range : only;
	{
		auto logoff = parseNumeric!(Numeric.RPL_MONONLINE)(only("test", "someone"));
		assert(logoff.front.mask.nickname == "someone");
		assert(logoff.front.mask.ident.isNull);
		assert(logoff.front.mask.host.isNull);
	}
	{
		auto logoff = parseNumeric!(Numeric.RPL_MONONLINE)(only("test", "someone,someone2"));
		assert(logoff.front.mask.nickname == "someone");
		assert(logoff.front.mask.ident.isNull);
		assert(logoff.front.mask.host.isNull);
		logoff.popFront();
		assert(logoff.front.mask.nickname == "someone2");
		assert(logoff.front.mask.ident.isNull);
		assert(logoff.front.mask.host.isNull);
	}