}
    return val;
  }

  /**
   * Returns a string containing each byte of {@link #asBytes}, in order, as a two-digit unsigned
   * hexadecimal number in lower case.
   *
   * <p>Note that if the output is considered to be a single hexadecimal number, whether this string
   * is big-endian or little-endian depends on the byte order of {@link #asBytes}. This may be

```

////

//// tab | Python 3.8+ Pydantic v1

```Python hl_lines="15-25"
{!> ../../docs_src/schema_extra_example/tutorial001_pv1.py!}
```

////

That extra info will be added as-is to the output **JSON Schema** for that model, and it will be used in the API docs.

//// tab | Pydantic v2

To set the output format, set the request `Content-Type` to the desired format. Accepted values are `application/json` for JSON output or `text/plain` for a Markdown-formatted table. The default is Markdown.

For example, the the following returns a list of all available bucket metrics:
```

copyright on the Program, and are irrevocable provided the stated
conditions are met.  This License explicitly affirms your unlimited
permission to run the unmodified Program.  The output from running a
covered work is covered by this License only if the output, given its
content, constitutes a covered work.  This License acknowledges your
rights of fair use or other equivalent, as provided by copyright law.

   *
   * <p>Like the {@link #toArray()} method, this method acts as bridge between array-based and
   * collection-based APIs. Further, this method allows precise control over the runtime type of the
   * output array, and may, under certain circumstances, be used to save allocation costs.
   *
   * <p>Suppose {@code x} is a queue known to contain only strings. The following code can be used

            if (!context.invokerRequest.options().verbose().orElse(false)) {
                context.logger.error("Re-run Maven using the '"
                        + MessageUtils.builder().strong("-X") + "' switch to enable verbose output");
            }

            if (!references.isEmpty()) {
                context.logger.error("");
                context.logger.error("For more information about the errors and possible solutions"

 *
 * <p>The implementation does not necessarily use a <i>stable</i> sorting algorithm; when multiple
 * equivalent elements are added to it, it is undefined which will come first in the output.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
final class TopKSelector<
    T extends @Nullable Object> {

  /**

    encoding was used by plugins)

    * <<<$\{project.reporting.outputEncoding\}>>> for
    {{{https://cwiki.apache.org/confluence/display/MAVENOLD/Reporting+Encoding+Configuration}reporting output files encoding}}
    (defaults to <<<UTF-8>>> since Maven 4.0.0, no default value was provided in Maven 3.x, plugins usually defaulting
    to <<<UTF-8>>>)

    []

			t.Fatalf("%+v: expected = %d, got: %d", testCase, testCase.expectedIndex, index)
		}
	}
}

// Test objectPartIndex(). generates a sample FileInfo data and asserts
// the output of objectPartIndex() with the expected value.
func TestObjectPartIndex(t *testing.T) {
	testCases := []struct {
		partNum       int
		expectedIndex int
	}{
		{2, 1},
		{1, 0},
		{5, 3},
		{4, 2},
		{7, 4},

In case of a S3 multi-part operation each part is en/decrypted with the scheme shown in Figure 1. However, for each part an unique secret key is derived from the OEK and the part number using a PRF. So in case of multi-part not the OEK but the output of `PRF(OEK, part_id)` is used as secret key.

#### Cryptographic Primitives