docs: public void marshall(EndpointSummary endpointSummary, ProtocolMarshaller protocolMarshaller) {
  
          if (endpointSummary == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(endpointSummary.getEndpointName(), ENDPOINTNAME_BINDING);
              protocolMarshaller.marshall(endpointSummary.getEndpointArn(), ENDPOINTARN_BINDING);
              protocolMarshaller.marshall(endpointSummary.getCreationTime(), CREATIONTIME_BINDING);
              protocolMarshaller.marshall(endpointSummary.getLastModifiedTime(), LASTMODIFIEDTIME_BINDING);
              protocolMarshaller.marshall(endpointSummary.getEndpointStatus(), ENDPOINTSTATUS_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }