eHealth Infrastructure (v2020.4) 

{
  "resourceType" : "OperationDefinition",
  "id" : "Media--get-data",
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><h2>get-data</h2><p>OPERATION: get-data</p><p>The official URL for this operation definition is: </p><pre>http://ehealth.sundhed.dk/fhir/OperationDefinition/Media--get-data</pre><p>URL: [base]/Media/$get-data</p><p>Parameters</p><table class=\"grid\"><tr><td><b>Use</b></td><td><b>Name</b></td><td><b>Cardinality</b></td><td><b>Type</b></td><td><b>Binding</b></td><td><b>Documentation</b></td></tr><tr><td>IN</td><td>uuid</td><td>0..1</td><td><a href=\"http://hl7.org/fhir/STU3/datatypes.html#string\">string</a></td><td/><td/></tr></table></div>"
  },
  "url" : "http://ehealth.sundhed.dk/fhir/OperationDefinition/Media--get-data",
  "name" : "get-data",
  "status" : "active",
  "kind" : "operation",
  "date" : "2020-05-22T12:11:22+00:00",
  "idempotent" : true,
  "code" : "get-data",
  "resource" : [
    "Media"
  ],
  "system" : false,
  "type" : true,
  "instance" : false,
  "parameter" : [
    {
      "name" : "uuid",
      "use" : "in",
      "min" : 0,
      "max" : "1",
      "type" : "string"
    }
  ]
}