ActorDefinition that contains a series of nested ratings to document the risk of bias assessment of an Evidence resource

{
  "resourceType" : "ActorDefinition",
  "id" : "client",
  "extension" : [{
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode" : "fhir"
  }],
  "url" : "http://hl7.org/fhir/ActorDefinition/client",
  "identifier" : [{
    "system" : "urn:ietf:rfc:3986",
    "value" : "urn:oid:2.16.840.1.113883.4.642.27.2"
  }],
  "name" : "ClientActor",
  "title" : "Client Actor",
  "status" : "active",
  "date" : "2021-11-02T14:31:30.239Z",
  "publisher" : "HL7 International / FHIR Infrastructure",
  "contact" : [{
    "telecom" : [{
      "system" : "url",
      "value" : "http://www.hl7.org/Special/committees/fiwg"
    }]
  }],
  "description" : "Client Actor",
  "type" : "system"
}