module.addKeyDeserializer(DateTime.class, new DateTimeKeyDeserializer());
module.addDeserializer(DateTime.class, new DateTimeDeserializer());
module.addSerializer(DateTime.class, ToStringSerializer.instance);
module.addDeserializer(Interval.class, new JodaStuff.IntervalDeserializer());
module.addSerializer(Interval.class, ToStringSerializer.instance);
module.addDeserializer(Period.class, new PeriodDeserializer());
module.addSerializer(Period.class, ToStringSerializer.instance);
module.addDeserializer(Duration.class, new DurationDeserializer());
module.addSerializer(Duration.class, ToStringSerializer.instance);
return module;