docs: @BetaApi
    public final AggregatedListTargetVpnGatewaysPagedResponse aggregatedListTargetVpnGateways(
        ProjectName project) {
      AggregatedListTargetVpnGatewaysHttpRequest request =
          AggregatedListTargetVpnGatewaysHttpRequest.newBuilder()
              .setProject(project == null ? null : project.toString())
              .build();
      return aggregatedListTargetVpnGateways(request);
    }