```java
class MetricsEventListener extends EventListener {
  private static final Factory FACTORY = new Factory() {
    @Override public EventListener create(Call call) {
      if (Math.random() < 0.10) {
        return new MetricsEventListener(call);
      } else {
        return EventListener.NONE;
      }
    }
  };

  ...

		logger.Info("bucketMetacache.findCache: bucket %s does not match this bucket %s", o.Bucket, b.bucket)
		debug.PrintStack()
		return metacache{}
	}

	// Grab a write lock, since we create one if we cannot find one.
	b.mu.Lock()
	defer b.mu.Unlock()

	// Check if exists already.
	if c, ok := b.caches[o.ID]; ok {
		c.lastHandout = time.Now()
		b.caches[o.ID] = c
		b.debugf("returning existing %v", o.ID)

/// note | Nota

Um parâmetro de rota é sempre obrigatório, como se fizesse parte da rota.

Então, você deve declará-lo com `...` para marcá-lo como obrigatório.

Mesmo que você declare-o como `None` ou defina um valor padrão, isso não teria efeito algum, o parâmetro ainda seria obrigatório.

///

## Ordene os parâmetros de acordo com sua necessidade

        }
        return sessionId;
    }

    /**
     * Stores crawling information and parameters for the specified session.
     * Creates a new crawling info record if none exists or if create flag is true.
     * Also stores any accumulated information parameters and clears the info map.
     *
     * @param sessionId the session ID for the crawling information

     *
     * @param url the URL to extract filename from
     * @param encoding the character encoding (currently unused in this method)
     * @return the extracted filename, or empty string if none found
     */
    default String getFileName(final String url, final String encoding) {
        if (StringUtil.isBlank(url)) {
            return StringUtil.EMPTY;
        }

        int idx = 0;

        assertEquals("1", extractData.getValues("xmpTPg:NPages")[0]);
        assertEquals("Normal", extractData.getValues("extended-properties:Template")[0]);
        assertEquals("None", extractData.getValues("extended-properties:DocSecurityString")[0]);
        assertEquals("たぐ", extractData.getValues("meta:keyword")[0]);
        assertEquals("ぶんるい", extractData.getValues("cp:category")[0]);

    /**
     * SAX event handler called when an XML start element is encountered.
     * Processes collection definitions and tracks the element hierarchy.
     *
     * @param uri the namespace URI, or empty string if none
     * @param localName the local name without prefix, or empty string if namespace processing is not performed
     * @param qName the qualified name with prefix, or empty string if qualified names are not available

{* ../../docs_src/path_params_numeric_validations/tutorial001_an_py310.py hl[10] *}

/// note | Примітка

Параметр шляху завжди є обов’язковим, оскільки він має бути частиною шляху. Навіть якщо Ви оголосите його зі значенням `None` або встановите значення за замовчуванням — він все одно залишатиметься обов’язковим.

///

## Упорядковуйте параметри, як Вам потрібно

/// tip | Підказка

c,d,e,f=[],g=0,h=a.length;h>g;g++)d=a[g],d.style&&(f[g]=L.get(d,"olddisplay"),c=d.style.display,b?(f[g]||"none"!==c||(d.style.display=""),""===d.style.display&&S(d)&&(f[g]=L.access(d,"olddisplay",tb(d.nodeName)))):(e=S(d),"none"===c&&e||L.set(d,"olddisplay",e?c:n.css(d,"display"))));for(g=0;h>g;g++)d=a[g],d.style&&(b&&"none"!==d.style.display&&""!==d.style.display||(d.style.display=b?f[g]||"":"none"));return a}n.extend({cssHooks:{opacity:{get:function(a,b){if(b){var c=xb(a,"opacity");return""===c?"1...

But if you have specified a custom response class with `None` as its media type, FastAPI will use `application/json` for any additional response that has an associated model.

///

## Combining information { #combining-information }