docs: @BetaApi
    public final ListInterconnectAttachmentsPagedResponse listInterconnectAttachments(
        ProjectRegionName region) {
      ListInterconnectAttachmentsHttpRequest request =
          ListInterconnectAttachmentsHttpRequest.newBuilder()
              .setRegion(region == null ? null : region.toString())
              .build();
      return listInterconnectAttachments(request);
    }