CDS Hooks API before/after ?

after.json

{
   "hook":"patient-view",
   "hookInstance":"e456d5b6-8f98-4e83-b586-40def6bc7778",
   "fhirServer":"http://hooks.smarthealthit.org:9080",
   "redirect":"http://hooks2.smarthealthit.org/service-done.html",
   "user":"Practitioner/example",
   "patient":"1288992",
   "prefetch":{
      "patientToGreet":{
         "resource":{
            "resourceType":"Patient",
            "id":"1288992",
            "active":true,
            "name":[
               {
                  "use":"official",
                  "family":[
                     "Adams"
                  ],
                  "given":[
                     "Daniel",
                     "X."
                  ]
               }
            ],
            "gender":"male",
            "birthDate":"1925-12-23"
         },
         "response":{
            "status":"200 OK"
         }
      }
   },
   "context":[]
}

before.json

{
   "resourceType":"Parameters",
   "parameter":[
      {
         "name":"activity",
         "valueCoding":{
            "system":"http://cds-hooks.smarthealthit.org/activity",
            "code":"patient-view"
         }
      },
      {
         "name":"activityInstance",
         "valueString":"20a0d525-639d-43d8-b100-671df12874b9"
      },
      {
         "name":"fhirServer",
         "valueUri":"http://hooks.smarthealthit.org:9080"
      },
      {
         "name":"redirect",
         "valueString":"http://hooks.fhir.me/service-done.html"
      },
      {
         "name":"user",
         "valueString":"Practitioner/example"
      },
      {
         "name":"patient",
         "valueId":"1288992"
      },
      {
         "name":"preFetchData",
         "resource":{
            "resourceType":"Bundle",
            "type":"transaction-response",
            "entry":[
               {
                  "resource":{
                     "resourceType":"Patient",
                     "id":"1288992",
                     "active":true,
                     "name":[
                        {
                           "use":"official",
                           "family":[
                              "Adams"
                           ],
                           "given":[
                              "Daniel",
                              "X."
                           ]
                        }
                     ],
                     "gender":"male",
                     "birthDate":"1925-12-23"
                  },
                  "response":{
                     "status":"200 OK"
                  }
               }
            ]
         }
      }
   ]
}