How to use the @opentelemetry/types.SpanKind.SERVER function in @opentelemetry/types

const response = args[1] as ServerResponse;
      const pathname = request.url
        ? url.parse(request.url).pathname || '/'
        : '/';
      const method = request.method || 'GET';

      plugin._logger.debug('%s plugin incomingRequest', plugin.moduleName);

      if (Utils.isIgnored(pathname, plugin._config.ignoreIncomingPaths)) {
        return original.apply(this, [event, ...args]);
      }

      const propagation = plugin._tracer.getHttpTextFormat();
      const headers = request.headers;
      const spanOptions: SpanOptions = {
        kind: SpanKind.SERVER,
      };

      const spanContext = propagation.extract(Format.HTTP, headers);
      if (spanContext && isValid(spanContext)) {
        spanOptions.parent = spanContext;
      }

      const span = plugin._startHttpSpan(`${method} ${pathname}`, spanOptions);

      return plugin._tracer.withSpan(span, () => {
        plugin._tracer.bind(request);
        plugin._tracer.bind(response);

        // Wraps end (inspired by:
        // https://github.com/GoogleCloudPlatform/cloud-trace-nodejs/blob/master/src/plugins/plugin-connect.ts#L75)
        const originalEnd = response.end;

return function func(
              this: typeof handlerSet,
              call: ServerCallWithMeta,
              callback: SendUnaryDataCallback
            ) {
              const self = this;

              const spanName = `grpc.${name.replace('/', '')}`;
              const spanOptions: SpanOptions = {
                kind: SpanKind.SERVER,
                parent: plugin._getSpanContext(call.metadata),
              };

              plugin._logger.debug(
                'patch func: %s',
                JSON.stringify(spanOptions)
              );

              const span = plugin._tracer
                .startSpan(spanName, spanOptions)
                .setAttributes({
                  [AttributeNames.GRPC_KIND]: spanOptions.kind,
                  [AttributeNames.COMPONENT]: GrpcPlugin.component,
                });

              plugin._tracer.withSpan(span, () => {