docs: @BetaApi
    public final Operation deleteInterconnectAttachment(
        ProjectRegionInterconnectAttachmentName interconnectAttachment) {
  
      DeleteInterconnectAttachmentHttpRequest request =
          DeleteInterconnectAttachmentHttpRequest.newBuilder()
              .setInterconnectAttachment(
                  interconnectAttachment == null ? null : interconnectAttachment.toString())
              .build();
      return deleteInterconnectAttachment(request);
    }