anchor.diff:          bundle.meta.lastUpdated := TDateTimeEx.makeUTC;
           summaryStatus := request.Summary;
   
  -        base := AppendForwardSlash(Request.baseUrl)+request.ResourceName+'/$lastN?';
  +        base := AppendForwardSlash(Request.baseUrl)+request.ResourceName+'/$lastn?';
           if response.Format <> ffUnspecified then
             base := base + '_format='+MIMETYPES_TFHIRFormat[response.Format]+'&';
           bundle.link_List.AddRelRef('self', base+sp.link_);
  
positive.code: 
  function TFhirObservationLastNOperation.Name: String;
  begin
    result := 'lastN';
  end;
  
  function TFhirObservationLastNOperation.owningResource: TFhirResourceType;
  
negative.code: 
  function TFhirObservationLastNOperation.formalURL: String;
  begin
    result := 'http://hl7.org/fhir/OperationDefinition/Observation-lastn';
  end;
  
  function TFhirObservationLastNOperation.isWrite: boolean;
  