public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
{
if (value == null)
{
writer.WriteNull();
return;
}
Ref <TTarget> r = (Ref <TTarget>)value;
Ref.ExtractIdentifier <TTarget, TID>(r, out TID id);
_idConverter.WriteJson(writer, id, serializer);
}
