if payload != req.Header.Get(xhttp.AmzContentSha256) {
		return cred, "", "", time.Time{}, ErrContentSHA256Mismatch
	}

	// Extract all the signed headers along with its values.
	extractedSignedHeaders, errCode := extractSignedHeaders(signV4Values.SignedHeaders, r)
	if errCode != ErrNone {
		return cred, "", "", time.Time{}, errCode
	}

    /**
     * Shortcut for {@code getService(ArtifactResolver.class).resolve(...)}.
     *
     * @param coordinates coordinates of the artifact to resolve
     * @return requested artifact together with the path to its file
     * @throws org.apache.maven.api.services.ArtifactResolverException if the artifact resolution failed
     *
     * @see org.apache.maven.api.services.ArtifactResolver#resolve(Session, Collection)
     */

        // Assert
        assertArrayEquals(expected, actual, "Computed response must match manual construction");
        // Also verify client challenge sits at mac(16) + blob offset 16
        assertArrayEquals(clientChallenge, Arrays.copyOfRange(actual, 16 + 16, 16 + 16 + 8));
    }

    @Test

En Python 3.10 también hay una **nueva sintaxis** donde puedes poner los posibles tipos separados por una <abbr title='también llamado "operador OR a nivel de bits", pero ese significado no es relevante aquí'>barra vertical (`|`)</abbr>.

//// tab | Python 3.10+

```Python hl_lines="1"
{!> ../../docs_src/python_types/tutorial008b_py310.py!}
```

////

     * {@code expectedValuesPerKey} is a good estimate.
     *
     * <p>This may be called more than once; each newly added key will use the most recent call to
     * {@link #expectedValuesPerKey} as its hint.
     *
     * @throws IllegalArgumentException if {@code expectedValuesPerKey} is negative
     * @since 33.3.0
     */
    @CanIgnoreReturnValue

 * "the same," <i>unless specified otherwise</i> by the implementation.
 *
 * <p><b>Warning:</b> as with normal {@link Set}s, it is almost always a bad idea to modify an
 * element (in a way that affects its {@link Object#equals} behavior) while it is contained in a
 * multiset. Undefined behavior and bugs will result.
 *
 * <h3>Implementations</h3>
 *
 * <ul>
 *   <li>{@link ImmutableMultiset}

    /**
     * Delete the file when the last handle to it is closed
     */
    public static final int FILE_DELETE_ON_CLOSE = 0x1000;
    /**
     * Open file by its file ID
     */
    public static final int FILE_OPEN_BY_FILE_ID = 0x2000;
    /**
     * The file is being opened for backup intent
     */
    public static final int FILE_OPEN_FOR_BACKUP_INTENT = 0x4000;

      throwIfInvalid(IteratorFeature.SUPPORTS_SET);

      stackWithLastReturnedElementAtTop.pop();
      stackWithLastReturnedElementAtTop.push(e);
    }

    /**
     * Moves the given element from its current position in {@link #nextElements} to the top of the
     * stack so that it is returned by the next call to {@link Iterator#next()}. If the element is

        request.writeBytesWireFormat(buffer, 0);

        // Then
        int readFilter = SMBUtil.readInt4(buffer, 24);
        assertEquals(allFilters, readFilter);
        assertEquals(0xFFF, readFilter); // All 12 bits set
    }

    @Test
    @DisplayName("Should handle different buffer sizes from configuration")
    void testDifferentBufferSizes() {
        // Given
        Configuration config = mock(Configuration.class);

But in this case, the same **FastAPI** application will handle the API and the authentication.

So, let's review it from that simplified point of view:

* The user types the `username` and `password` in the frontend, and hits `Enter`.
* The frontend (running in the user's browser) sends that `username` and `password` to a specific URL in our API (declared with `tokenUrl="token"`).