* methods ensure that the {@code WrappedCollection} and map remain consistent.
   *
   * <p>A subcollection, such as a sublist, contains some of the values for a given key. Its
   * ancestor field points to the full wrapped collection with all values for the key. The
   * subcollection {@code refreshIfEmpty}, {@code removeIfEmpty}, and {@code addToMap} methods call
   * the corresponding methods of the full wrapped collection.

# Introducción a Tipos en Python

Python tiene soporte para "anotaciones de tipos" opcionales (también llamadas "type hints").

Estas **"anotaciones de tipos"** o type hints son una sintaxis especial que permite declarar el <abbr title="por ejemplo: str, int, float, bool">tipo</abbr> de una variable.

Al declarar tipos para tus variables, los editores y herramientas te pueden proporcionar un mejor soporte.

```

////

//// tab | Python 3.8+

```Python hl_lines="1  4"
{!> ../../docs_src/python_types/tutorial008.py!}
```

////

یعنی:

* متغیر `prices` یه `dict` هست:
    * کلیدهای این `dict` از نوع `str` هستن (مثلاً اسم هر آیتم).
    * مقدارهای این `dict` از نوع `float` هستن (مثلاً قیمت هر آیتم).

#### اتحادیه

	}
}

// StringAll returns a detailed string representation of all entries in the cache.
func (d *dataUsageCache) StringAll() string {
	// Remove bloom filter from print.
	s := fmt.Sprintf("info:%+v\n", d.Info)
	for k, v := range d.Cache {
		s += fmt.Sprintf("\t%v: %+v\n", k, v)
	}
	return strings.TrimSpace(s)
}

// String returns a human readable representation of the string.
func (h dataUsageHash) String() string {

        }

        DfsReferralDataInternal dr = null;
        final long now = System.currentTimeMillis();
        synchronized (this.domainsLock) {
            /*
             * domains that can contain DFS points to maps of roots for each
             */
            final Map<String, Map<String, CacheEntry<DfsReferralDataInternal>>> domains = getTrustedDomains(tf);
            if (domains != null) {

boundariesElement: 'scrollParent',\n  },\n\n  /**\n   * Modifier used to make sure the reference and its popper stay near each other\n   * without leaving any gap between the two. Especially useful when the arrow is\n   * enabled and you want to ensure that it points to its reference element.\n   * It cares only about the first axis. You can still have poppers with margin\n   * between the popper and its reference element.\n   * @memberof modifiers\n   * @inner\n   */\n  keepTogether: {\n    /** @prop {number}...

 * href="http://www.unicode.org/glossary/#BMP_character">BMP characters</a>. It does not understand
 * <a href="http://www.unicode.org/glossary/#supplementary_code_point">supplementary Unicode code
 * points</a> in the range {@code 0x10000} to {@code 0x10FFFF} which includes the majority of
 * assigned characters, including important CJK characters and emoji.
 *
 * <p>Supplementary characters are <a

Esses **"type hints"** são uma sintaxe especial que permite declarar o <abbr title = "por exemplo: str, int, float, bool">tipo</abbr> de uma variável.

Ao declarar tipos para suas variáveis, editores e ferramentas podem oferecer um melhor suporte.

```console
$ echo "*" > .venv/.gitignore
```

</div>

/// details | What that command means

* `echo "*"`: will "print" the text `*` in the terminal (the next part changes that a bit)
* `>`: anything printed to the terminal by the command to the left of `>` should not be printed but instead written to the file that goes to the right of `>`
* `.gitignore`: the name of the file where the text should be written

        this.facetCacheDuration = facetCacheDuration;
    }

    /**
     * Hook class for customizing action processing.
     * Provides extension points for action lifecycle management.
     */
    public static class ActionHook {

        /**
         * Default constructor for ActionHook.
         */
        public ActionHook() {