{description: Used to exchange a clinical document. One of FHIR Binary or FHIR Bundle (type=document) is required., package_name: uk.nhsdigital.r4, name: null, type: null, package_version: 2.1.28-discovery, class: unknown, kind: null, url: 'https://fhir.nhs.uk/MessageDefinition/document', version: 1.0.0}