Pulsing Codec Port help

[Prescott Nasser]

 So, I've mostly ported the Pulsing Codecs and I'm running into a little 
trouble:
 
        private DocsEnum GetOther(DocsEnum de)
        {
            if (de == null)
                return null;
            
            var atts = de.Attributes();
            return 
atts.AddAttribute(PulsingEnumAttribute.class).Enums().get(this); //how to 
convert this line.
        }
        
private DocsEnum SetOther(DocsEnum de, DocsEnum other)
        {
            var atts = de.Attributes();
            return 
atts.AddAttribute(PulsingEnumAttribute.class).Enums().put(this, other); //how 
to convert this line.
        }
 
Java source here: 
https://github.com/apache/lucene-solr/blob/lucene_solr_4_8_0/lucene/codecs/src/java/org/apache/lucene/codecs/pulsing/PulsingPostingsReader.java
 
Any thoughts?
 
Thanks
~Prescott