class BlobChecker implements RegistryEndpointProvider<Optional<BlobDescriptor>> {

  @Override
  public String getActionDescription() {
    return "check BLOB exists for "
        + registryEndpointRequestProperties.getServerUrl()
        + "/"
        + registryEndpointRequestProperties.getImageName()
        + " with digest "
        + blobDigest;
  }

    BlobChecker(
      RegistryEndpointRequestProperties registryEndpointRequestProperties,
      DescriptorDigest blobDigest);

}