public void Enter()
{
var builder = new DeserializerBuilder();
_optInDeserializer = builder
.WithTypeInspector(inspector => new DataContractTypeInspector(inspector)
{
DataMemberSerialization = DataMemberSerialization.OptIn,
NamingConvention = new UnderscoredNamingConvention()
})
.IgnoreUnmatchedProperties()
.Build();
}