VOL-4032: gRPC Streams for Events, Metrics

Change-Id: Iff813c7e701490833b8585a6c5516348000e541f
diff --git a/cpp/dmi/hw_metrics_mgmt_service.pb.h b/cpp/dmi/hw_metrics_mgmt_service.pb.h
index 5967faa..ab393ae 100644
--- a/cpp/dmi/hw_metrics_mgmt_service.pb.h
+++ b/cpp/dmi/hw_metrics_mgmt_service.pb.h
@@ -34,6 +34,7 @@
 #include <google/protobuf/unknown_field_set.h>
 #include "dmi/commons.pb.h"
 #include "dmi/hw.pb.h"
+#include <google/protobuf/empty.pb.h>
 // @@protoc_insertion_point(includes)
 #include <google/protobuf/port_def.inc>
 #define PROTOBUF_INTERNAL_EXPORT_dmi_2fhw_5fmetrics_5fmgmt_5fservice_2eproto