anchor.diff:  
   function TFhirObservationLastNOperation.formalURL: String;
   begin
  -  result := 'http://hl7.org/fhir/OperationDefinition/Observation-lastN';
  +  result := 'http://hl7.org/fhir/OperationDefinition/Observation-lastn';
   end;
   
   function TFhirObservationLastNOperation.isWrite: boolean;
  
positive.code: 
  function TFhirObservationLastNOperation.Name: String;
  begin
    result := 'lastN';
  end;
  
  function TFhirObservationLastNOperation.owningResource: TFhirResourceType;
  
negative.code:         bundle.meta.lastUpdated := TDateTimeEx.makeUTC;
          summaryStatus := request.Summary;
  
          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_);
  