listMachineSummaries_Pre method
- ServiceCall call,
 - Future<
ListMachineSummariesRequest> request 
Implementation
$async.Future<$11.ListMachineSummariesResponse> listMachineSummaries_Pre($grpc.ServiceCall call, $async.Future<$11.ListMachineSummariesRequest> request) async {
  return listMachineSummaries(call, await request);
}