{
  "resourceType": "StructureDefinition",
  "url": "https://example.org/fhir/StructureDefinition/TrainingObservation",
  "name": "TrainingObservation",
  "status": "draft",
  "fhirVersion": "4.0.1",
  "kind": "resource",
  "abstract": false,
  "type": "Observation",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Observation",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Observation",
        "path": "Observation",
        "constraint": [
          {
            "key": "training-1",
            "severity": "error",
            "human": "ValueQuantity or Note are not available.",
            "expression": "value.ofType(Quantity).exists() or note.exists()"
          }
        ]
      },
      {
        "id": "Observation.extension:testEnvironment",
        "path": "Observation.extension",
        "sliceName": "testEnvironment",
        "definition": "The environment in which the test took place.",
        "type": [
          {
            "code": "Extension",
            "profile": [
              "https://example.org/fhir/StructureDefinition/Environment"
            ]
          }
        ],
        "isModifier": false
      },
      {
        "id": "Observation.subject",
        "path": "Observation.subject",
        "type": [
          {
            "code": "Reference",
            "targetProfile": [
              "https://example.org/fhir/StructureDefinition/MyAlpCorePatient"
            ]
          }
        ]
      },
      {
        "id": "Observation.value[x]",
        "path": "Observation.value[x]",
        "condition": [
          "training-1"
        ]
      },
      {
        "id": "Observation.note",
        "path": "Observation.note",
        "condition": [
          "training-1"
        ]
      },
      {
        "id": "Observation.bodySite.extension:laterality",
        "path": "Observation.bodySite.extension",
        "sliceName": "laterality",
        "type": [
          {
            "code": "Extension",
            "profile": [
              "https://example.org/fhir/StructureDefinition/laterality"
            ]
          }
        ],
        "isModifier": false
      }
    ]
  }
}