if expectedHost != extractedHost {
		t.Errorf("host header mismatch: expected `%s`, got `%s`", expectedHost, extractedHost)
	}
	// assert the result with the expected value.
	if expectedContentSha256 != extractedContentSha256 {
		t.Errorf("x-amz-content-sha256 header mismatch: expected `%s`, got `%s`", expectedContentSha256, extractedContentSha256)
	}
	if expectedTime != extractedDate {

Si no ve un header `Authorization`, o el valor no tiene un token `Bearer `, responderá directamente con un error de código de estado 401 (`UNAUTHORIZED`).

Ni siquiera tienes que verificar si el token existe para devolver un error. Puedes estar seguro de que si tu función se ejecuta, tendrá un `str` en ese token.

Puedes probarlo ya en los docs interactivos:

	}

	for id := range remove {
		b.deleteCache(id)
	}
}

// updateCacheEntry will update a cache.
// Returns the updated status.
func (b *bucketMetacache) updateCacheEntry(update metacache) (metacache, error) {
	b.mu.Lock()
	defer b.mu.Unlock()
	existing, ok := b.caches[update.id]
	if !ok {
		return update, errFileNotFound
	}
	existing.update(update)
	b.caches[update.id] = existing
	b.updated = true

{* ../../docs_src/security/tutorial007_an_py39.py hl[1,12:24] *}

Isso seria parecido com:

```Python
if not (credentials.username == "stanleyjobson") or not (credentials.password == "swordfish"):
    # Return some error
    ...
```

Porém, ao utilizar o `secrets.compare_digest()`, isso estará seguro contra um tipo de ataque chamado "timing attacks" (ataques de temporização).

### Ataques de Temporização

        default:
            break;
        }
        return OptionalEntity.empty();
    }

    /**
     * Create a char mapping item.
     * @param form The create form.
     * @param hook The error hook.
     * @return An optional entity of a char mapping item.
     */
    protected OptionalEntity<CharMappingItem> createCharMappingItem(final CreateForm form, final VaErrorHook hook) {
        try {

        val reason =
          when (value) {
            in 100..199 -> "Informational"
            in 200..299 -> "OK"
            in 300..399 -> "Redirection"
            in 400..499 -> "Client Error"
            in 500..599 -> "Server Error"
            else -> "Mock Response"
          }
        status = "HTTP/1.1 $value $reason"
      }

    private var headers_: Headers.Builder
    public val headers: Headers

        return FileUtil.getCanonicalPath(zipFile);
    }

    /**
     * Closes the Zip file.
     * <p>
     * If {@link ZipFile#close()} throws an exception, an error message is logged. The exception is not rethrown.
     * </p>
     *
     * @param zipFile
     *            Zip file. Must not be {@literal null}.
     */
    public static void close(final ZipFile zipFile) {

                // memoryRegister.deregisterMemory();

                log.debug("DiSNI memory region invalidated");
            } catch (Exception e) {
                log.warn("Error invalidating DiSNI memory region", e);
            } finally {
                memoryRegister = null;
                valid = false;
            }
        }
    }

    @Override

(a,c){b=b.replace(new RegExp(a,"g"),c)}),b.replace(new RegExp("__%AMP%__","g"),"&"))}},e=function(b,e,f){e||(e=a("form")),e.each||(e=a(e));var g=function(){var b=a(this),c=b.val();a.split(b.attr("data-sanitize"),function(a){if(!(a in d))throw new Error('Use of unknown sanitize command "'+a+'"');c=d[a](c,b,f)}),b.val(c).trigger("keyup.validation")};e.each(function(){var b=a(this);f.sanitizeAll&&b.find("input,textarea").not(c).each(function(){var b=a(this),c=b.attr("data-sanitize")||"";b.attr("dat...

    /**
     * Ping packet type
     */
    int RPC_PT_PING = 0x01;
    /**
     * Response packet type
     */
    int RPC_PT_RESPONSE = 0x02;
    /**
     * Fault packet type - indicates an error
     */
    int RPC_PT_FAULT = 0x03;
    /**
     * Bind packet type - establishes context
     */
    int RPC_PT_BIND = 0x0B;
    /**
     * Bind acknowledgment packet type
     */