* As such, this field must be cleared before every map mutation.
   *
   * Note about volatile: volatile doesn't make it safe to read from a mutable graph in one thread
   * while writing to it in another. All it does is help with _reading_ from multiple threads
   * concurrently. For more information, see AbstractNetworkTest.concurrentIteration.
   */
  private transient volatile @Nullable Entry<K, V> cacheEntry;

- admin:DisableGroup

#### Policy management permissions

- admin:CreatePolicy
- admin:DeletePolicy
- admin:GetPolicy
- admin:AttachUserOrGroupPolicy
- admin:ListUserPolicies

#### Heal management permissions

- admin:Heal

#### Service account management permissions

- admin:CreateServiceAccount
- admin:UpdateServiceAccount
- admin:RemoveServiceAccount
- admin:ListServiceAccounts

 *
 * Follows the one directory per package name segment convention.
 * Keeps JAR files open for fast lookup, must be closed.
 *
 * Always include the current JVM platform loader for which no JAR file can be held open.
 */
class ClassBytesRepository(
    platformClassLoader: ClassLoader,
    classPathFiles: List<File>,
    classPathDependencies: List<File> = emptyList(),
) : Closeable {

    private

    }

    /*
     * We need the top SIGNIFICAND_BITS + 1 bits, including the "implicit" one bit. To make rounding
     * easier, we pick out the top SIGNIFICAND_BITS + 2 bits, so we have one to help us round up or
     * down. twiceSignifFloor will contain the top SIGNIFICAND_BITS + 2 bits, and signifFloor the
     * top SIGNIFICAND_BITS + 1.
     *

    @Test
    public void testEncodingSpecialCharacters() {
        CurlRequest request = new CurlRequest(Method.GET, "https://example.com");

        // Test encoding of special characters
        request.param("query", "hello world & more");
        request.param("special", "ñ€±");

        // Should not throw exception
        assertNotNull(request);
    }

    @Test
    public void testUnsupportedEncodingThrowsException() {

{* ../../docs_src/custom_response/tutorial009c_py39.py hl[9:14,17] *}

Ahora en lugar de devolver:

```json
{"message": "Hello World"}
```

...este response devolverá:

```json
{
  "message": "Hello World"
}
```

Por supuesto, probablemente encontrarás formas mucho mejores de aprovechar esto que formatear JSON. 😉

{* ../../docs_src/custom_response/tutorial009c_py39.py hl[9:14,17] *}

Теперь вместо того, чтобы возвращать:

```json
{"message": "Hello World"}
```

...этот ответ вернёт:

```json
{
  "message": "Hello World"
}
```

Разумеется, вы наверняка найдёте гораздо более полезные способы воспользоваться этим, чем просто форматирование JSON. 😉

			Value: "",
		},
		config.KV{
			Key:   RoleID,
			Value: "",
		},
	}

	defaultHelpPostfix = func(key string) string {
		return config.DefaultHelpPostfix(DefaultKVS, key)
	}

	// Help for Identity Plugin
	Help = config.HelpKVS{
		config.HelpKV{
			Key:         URL,
			Description: `plugin hook endpoint (HTTP(S)) e.g. "http://localhost:8181/path/to/endpoint"` + defaultHelpPostfix(URL),
			Type:        "url",
		},

        This means for example that adding pluginA:goal2 to pre-existing (pluginA:goal1, pluginB:goal) will lead to (pluginA:goal1, pluginA:goal2, pluginB:goal)

   * see effective POM as shown by {{{/plugins/maven-help-plugin/effective-pom-mojo.html}<<<help:effective-pom>>>}} to see the effective plugins then goals order.

 * <<<MavenPluginManager>>> component ({{{./apidocs/org/apache/maven/plugin/MavenPluginManager.html}javadoc}}),

In many frameworks and systems just handling security and authentication takes a big amount of effort and code (in many cases it can be 50% or more of all the code written).

**FastAPI** provides several tools to help you deal with **Security** easily, rapidly, in a standard way, without having to study and learn all the security specifications.

But first, let's check some small concepts.

## In a hurry? { #in-a-hurry }