etcdserver/etcdserverpb/gw/rpc.pb.gw.go
func RegisterMaintenanceHandler(ctx context.Context, mux *runtime.ServeMux, conn *grpc.ClientConn) error {
	return RegisterMaintenanceHandlerClient(ctx, mux, etcdserverpb.NewMaintenanceClient(conn))
}
func RegisterMaintenanceHandler(ctx context.Context, mux *runtime.ServeMux, conn *grpc.ClientConn) error {
	return RegisterMaintenanceHandlerClient(ctx, mux, etcdserverpb.NewMaintenanceClient(conn))
}
// RegisterMaintenanceHandler registers the http handlers for service Maintenance to "mux".
// The handlers forward requests to the grpc endpoint over "conn".