CancellationManager* cancellation_manager) = 0;

  // Returns the stack trace set by `SetStackTrace` if exists.
  virtual absl::optional<ManagedStackTrace> GetStackTrace() = 0;

  virtual void SetStepId(int64_t step_id) = 0;

  // For LLVM style RTTI.
  static bool classof(const AbstractOperation* ptr) {
    return ptr->getKind() == kEager || ptr->getKind() == kTfrt;
  }

 protected:

        // Fast path (first test is probably all we need to do)
        return c1;
      } else if (c1 <= Character.MAX_HIGH_SURROGATE) {
        // If the high surrogate was the last character, return its inverse
        if (index == end) {
          return -c1;
        }
        // Otherwise look for the low surrogate following it
        char c2 = seq.charAt(index);

	httpTimeout time.Duration
}

// Name returns the name of the target
func (h *Target) Name() string {
	return "minio-http-" + h.config.Name
}

// Type - returns type of the target
func (h *Target) Type() types.TargetType {
	return types.TargetHTTP
}

// Endpoint returns the backend endpoint
func (h *Target) Endpoint() string {
	return h.config.Endpoint.String()
}

	if err != nil {
		return 0, err
	}
	_, err = b.Hash.Write(p)
	if err != nil {
		return 0, err
	}
	return len(p), nil
}

func (b *wholeBitrotWriter) Close() error {
	return nil
}

// Returns whole-file bitrot writer.
func newWholeBitrotWriter(disk StorageAPI, volume, filePath string, algo BitrotAlgorithm, shardSize int64) io.WriteCloser {

### Per-bucket Metrics

      newRequest: Request,
    ): Boolean {
      return cachedResponse.headers.varyFields().none {
        cachedRequest.values(it) != newRequest.headers(it)
      }
    }

    /** Returns true if a Vary header contains an asterisk. Such responses cannot be cached. */
    fun Response.hasVaryAll(): Boolean = "*" in headers.varyFields()

    /**

	i        int64 // current reading index
	prevRune int   // index of previous rune; or < 0
}

// Len returns the number of bytes of the unread portion of the
// slice.
func (r *Reader) Len() int {
	if r.i >= int64(len(r.s)) {
		return 0
	}
	return int(int64(len(r.s)) - r.i)
}

// Size returns the original length of the underlying byte slice.
// Size is the number of bytes available for reading via [Reader.ReadAt].

		if err != nil {
			return nil, err
		}
		return objectKey[:], nil
	case crypto.SSEC:
		sealedKey, err := crypto.SSEC.ParseMetadata(metadata)
		if err != nil {
			return nil, err
		}
		var objectKey crypto.ObjectKey
		if err = objectKey.Unseal(key, sealedKey, crypto.SSEC.String(), bucket, object); err != nil {
			return nil, err
		}
		return objectKey[:], nil
	default:
		return nil, errObjectTampered
	}

	// Anonymous request return quickly.
	if accessKey == "" || secretKey == "" {
		return req, nil
	}

	for k, v := range headers {
		req.Header.Set(k, v)
	}

	err = signRequestV2(req, accessKey, secretKey)
	if err != nil {
		return nil, err
	}

	return req, nil
}

// Returns new HTTP request object signed with signature v4.

     *
     * @param functions A collection of functions, each taking a String as input and returning a String.
     * @return A function that applies each function in the collection in order until a non-null result is found.
     *         If all functions return null, the composite function returns null.
     *
     * @throws NullPointerException if the input collection is null or contains null elements.
     */