anchor.diff:    "@value" : {
       "dur" : {
         "@type" : "g:Double",
  -      "@value" : 0.163871
  +      "@value" : 0.138285
       },
       "counts" : {
         "traverserCount" : {
  
positive.code: [source,json]
  ----
  {
    "requestId" : {
      "@type" : "g:UUID",
      "@value" : "c4183c83-8cd5-4058-ae9d-53e74f383031"
    },
    "op" : "eval",
    "processor" : "session",
    "args" : {
  
negative.code: 
  [source,json]
  ----
  "2018-01-19T08:30:19.937-05:00[America/New_York]"
  ----
  
  ==== ZoneOffset
  