long oldPosition = sourceChannel.position();
      long position = oldPosition;
      long copied;
      do {
        copied = sourceChannel.transferTo(position, ZERO_COPY_CHUNK_SIZE, to);
        position += copied;
        sourceChannel.position(position);
      } while (copied > 0 || position < sourceChannel.size());
      return position - oldPosition;
    }

	// Copy on write
	dst := metadata
	var copied bool
	delKey := func(key string) {
		if _, ok := metadata[key]; !ok {
			return
		}
		if !copied {
			dst = make(map[string]string, len(metadata))
			for k, v := range metadata {
				dst[k] = v
			}
			copied = true
		}
		delete(dst, key)
	}
	legalHold := GetObjectLegalHoldMeta(metadata)

     *
     * ## The file
     *
     * In this case we copy bytes from the file to the [sink].
     *
     * ## The buffer
     *
     * In this case the bytes are immediately copied into [sink] and the number of bytes copied is
     * returned.
     *
     * If upstream would be selected but another thread is already reading upstream this will

}

// CopyObjectResponse container returns ETag and LastModified of the successfully copied object
type CopyObjectResponse struct {
	XMLName      xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ CopyObjectResult" json:"-"`
	LastModified string   // time string of format "2006-01-02T15:04:05.000Z"
	ETag         string   // md5sum of the copied object.
}

// as mandated by RFC 3986 Section 6.2.3.
func removeEmptyPort(host string) string {
	if hasPort(host) {
		return strings.TrimSuffix(host, ":")
	}
	return host
}

// Copied from http.NewRequest but implemented to ensure we reuse `url.URL` instance.
func (c *Client) newRequest(ctx context.Context, u url.URL, body io.Reader) (*http.Request, error) {
	rc, ok := body.(io.ReadCloser)

     * 例えばJavaBeans側のデリミタにアンダースコア、{@link Map}側のデリミタにピリオドを指定した場合、
     * コピー元とコピー先のプリパティ名は次のようになります。
     * </p>
     * <table border="1">
     * <caption>Copied JavaBeans Properties</caption>
     * <tr>
     * <th>JavaBeansのプロパティ名</th>
     * <th>{@literal Map}のプロパティ名</th>
     * </tr>
     * <tr>
     * <td>{@literal foo}</td>
     * <td>{@literal foo}</td>

message ResourceClaimTemplateSpec {
  // ObjectMeta may contain labels and annotations that will be copied into the PVC
  // when creating it. No other fields are allowed and will be rejected during
  // validation.
  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.ObjectMeta metadata = 1;

  // Spec for the ResourceClaim. The entire content is copied unchanged
  // into the ResourceClaim that gets created from this template. The

     * 例えばJavaBeans側のデリミタにアンダースコア、{@link Map}側のデリミタにピリオドを指定した場合、
     * コピー元とコピー先のプリパティ名は次のようになります。
     * </p>
     * <table border="1">
     * <caption>Copied JavaBeans Properties</caption>
     * <tr>
     * <th>JavaBeansのプロパティ名</th>
     * <th>{@literal Map}のプロパティ名</th>
     * </tr>
     * <tr>
     * <td>{@literal foo}</td>
     * <td>{@literal foo}</td>

- `istio-cni`
    - CNI plugin executable copied to `/opt/cni/bin`
    - currently implemented for k8s only
    - on pod add, determines whether pod should have netns setup to redirect to Istio proxy. See [cmdAdd](#cmdadd-workflow) for detailed logic.

            expr = expr.substring(2, expr.length() - 1);
        }
        return expr;
    }

    @Override
    public File alignToBaseDirectory(File file) {
        // TODO Copied from the DefaultInterpolator. We likely want to resurrect the PathTranslator or at least a
        // similar component for re-usage
        if (file != null) {
            if (file.isAbsolute()) {