{
    "fullUrl":"urn:uuid:{{ID}}",
    "resource":{
        "resourceType": "DocumentReference",
        "id":"{{ID}}",
        "status":"current",
        "content":
        [
          {
            "attachment":
            {
                "contentType":"{{docref.externalDocument.text.mediaType}}"
                "url":"{{docref.externalDocument.text.reference.value}}",
            },
          },
        ],
    },
    "request":{
        "method":"PUT",
        "url":"DocumentReference/{{ID}}",
    },
},