if fastSmalls && 0 <= i && i < nSmalls && base == 10 {
		return small(int(i))
	}
	_, s := formatBits(nil, uint64(i), base, i < 0, false)
	return s
}

// Itoa is equivalent to [FormatInt](int64(i), 10).
func Itoa(i int) string {
	return FormatInt(int64(i), 10)
}

// AppendInt appends the string form of the integer i,
// as generated by [FormatInt], to dst and returns the extended buffer.

}

func (u *UpgradeFailureError) Error() string {
	return fmt.Sprintf("unable to upgrade streaming request: %s", u.Cause)
}

// IsUpgradeFailure returns true if the passed error is (or wrapped error contains)
// the UpgradeFailureError.
func IsUpgradeFailure(err error) bool {
	if err == nil {
		return false
	}
	var upgradeErr *UpgradeFailureError
	return errors.As(err, &upgradeErr)
}

		return nil, errExpectFieldItems
	}
	switch items.Kind() {
	case reflect.Interface, reflect.Pointer:
		target := reflect.TypeOf(items.Interface()).Elem()
		if target.Kind() != reflect.Slice {
			return nil, errExpectSliceItems
		}
		return items.Interface(), nil
	case reflect.Slice:
		return items.Addr().Interface(), nil
	default:
		return nil, errExpectSliceItems
	}
}

 */
public interface Isolatable<T> extends Hashable {
    /**
     * Returns this value as a {@link ValueSnapshot}. The returned value should not hold any references to user ClassLoaders.
     */
    ValueSnapshot asSnapshot();

    /**
     * Returns an instance of T that is isolated from the original object and all other instances.

      case 0:
        return (k == 0) ? 1 : 0;
      case 1:
        return 1;
      case (-1):
        return ((k & 1) == 0) ? 1 : -1;
      case 2:
        if (k >= Integer.SIZE - 1) {
          return Integer.MAX_VALUE;
        }
        return 1 << k;
      case (-2):
        if (k >= Integer.SIZE) {
          return Integer.MAX_VALUE + (k & 1);
        }
        return ((k & 1) == 0) ? 1 << k : -1 << k;

// SliceData returns a pointer to the underlying array of the argument
// slice.
//   - If cap(slice) > 0, SliceData returns &slice[:1][0].
//   - If slice == nil, SliceData returns nil.
//   - Otherwise, SliceData returns a non-nil pointer to an
//     unspecified memory address.
func SliceData(slice []ArbitraryType) *ArbitraryType

// String returns a string value whose underlying bytes

   * required to be a {@link BufferedWriter} in order to allow implementations to simply delegate to
   * {@link #openStream()} when the stream returned by that method does not benefit from additional
   * buffering. This method returns a new, independent writer each time it is called.
   *
   * <p>The caller is responsible for ensuring that the returned writer is closed.
   *

   *     return DEFAULT_VALUE;
   *   }
   * </pre>
   *
   * @param target the object to proxy
   * @param interfaceType the interface you wish the returned proxy to implement
   * @param timeout the maximum length of time that callers are willing to wait on each method call
   *     to the proxy
   * @return a time-limiting proxy
   * @throws IllegalArgumentException if {@code interfaceType} is a regular class, enum, or

// Return the appropriate closing error based on isFile.
func errClosing(isFile bool) error {
	if isFile {
		return ErrFileClosing
	}
	return ErrNetClosing
}

// ErrDeadlineExceeded is returned for an expired deadline.
// This is exported by the os package as os.ErrDeadlineExceeded.
var ErrDeadlineExceeded error = &DeadlineExceededError{}

// DeadlineExceededError is returned for an expired deadline.

   * {@link Optional#absent} is returned.
   *
   * <p><b>Comparison to {@code java.util.Optional}:</b> this method is similar to Java 8's {@code
   * Optional.map}, except when {@code function} returns {@code null}. In this case this method
   * throws an exception, whereas the Java 8+ method returns {@code Optional.absent()}.
   *
   * @throws NullPointerException if the function returns {@code null}
   * @since 12.0
   */