{
  "resourceType": "StructureDefinition",
  "url": "https://example.org/fhir/StructureDefinition/MyActivityDefinition",
  "name": "MyActivityDefinition",
  "status": "draft",
  "fhirVersion": "4.3.0",
  "kind": "resource",
  "abstract": false,
  "type": "ActivityDefinition",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/ActivityDefinition",
  "derivation": "constraint"
}