{description: SearchParameter for Research Study Extension, package_name: hl7.fhir.uv.extensions, name: ResearchStudySearchParameter, type: reference, package_version: 5.1.0-snapshot1, class: unknown, kind: null, url: 'http://hl7.org/fhir/SearchParameter/workflow-researchStudy', version: 5.1.0-snapshot1}