{
  "resourceType": "StructureDefinition",
  "id": "Issue01Appointment",
  "url": "http://acme.com/StructureDefinition/Issue01/Appointment",
  "name": "Issue01Appointment",
  "status": "draft",
  "fhirVersion": "4.0.1",
  "kind": "resource",
  "abstract": false,
  "type": "Appointment",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Appointment",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Appointment.participant.actor",
        "path": "Appointment.participant.actor",
        "min": 1,
        "type": [
          {
            "code": "Reference",
            "targetProfile": [
              "http://hl7.org/fhir/StructureDefinition/PractitionerRole",
              "http://hl7.org/fhir/StructureDefinition/RelatedPerson",
              "http://hl7.org/fhir/StructureDefinition/Device",
              "http://hl7.org/fhir/StructureDefinition/HealthcareService",
              "http://hl7.org/fhir/StructureDefinition/Location",
              "http://acme.com/StructureDefinition/Issue01/Practitioner",
              "http://acme.com/StructureDefinition/Issue01/Patient"
            ]
          }
        ]
      }
    ]
  }
}