checkState(count() > 1);
    return sumOfProductsOfDeltas / (count() - 1);
  }

  /**
   * Returns the <a href="http://mathworld.wolfram.com/CorrelationCoefficient.html">Pearson's or
   * product-moment correlation coefficient</a> of the values. The count must greater than one, and
   * the {@code x} and {@code y} values must both have non-zero population variance (i.e. {@code

    else -> skip(newline + 1)
  }
}

/**
 * Reads lines from `IdnaMappingTable.txt`.
 *
 * Comment lines are either blank or start with a `#` character. Lines may also end with a comment.
 * All comments are ignored.
 *
 * Regular lines contain fields separated by semicolons.
 *
 * The first element on each line is a single hex code point (like 0041) or a hex code point range
 * (like 0030..0039).
 *

     * Handles various GSA pattern formats including regexp, contains, and URL-based patterns.
     *
     * @param s the input GSA pattern string
     * @return a regular expression pattern string, or empty string for comments/invalid patterns
     */
    protected String getFilterPath(final String s) {
        if (s.startsWith("#")) {
            return StringUtil.EMPTY;
        }
        if (s.startsWith(CONTAINS)) {

            }
        }

        @Test
        @DisplayName("Should validate constant bit positions")
        void shouldHaveCorrectBitPositions() {
            // Verify specific bit positions as documented in comments
            assertEquals(0, Integer.numberOfTrailingZeros(ACE.FILE_READ_DATA), "FILE_READ_DATA should be at bit position 0");

```

#### `RequestValidationError` vs `ValidationError`

/// warning | Advertencia

Estos son detalles técnicos que podrías omitir si no es importante para ti en este momento.

///

`RequestValidationError` es una subclase de <a href="https://docs.pydantic.dev/latest/concepts/models/#error-handling" class="external-link" target="_blank">`ValidationError`</a> de Pydantic.

```

### `RequestValidationError` vs `ValidationError`

/// warning | Aviso

Você pode pular estes detalhes técnicos caso eles não sejam importantes para você neste momento.

///

`RequestValidationError` é uma subclasse do <a href="https://docs.pydantic.dev/latest/#error-handling" class="external-link" target="_blank">`ValidationError`</a> existente no Pydantic.

{* ../../docs_src/python_types/tutorial001.py hl[2] *}


### Bewerk het

Dit is een heel eenvoudig programma.

Maar stel je nu voor dat je het vanaf nul zou moeten maken.

Op een gegeven moment zou je aan de definitie van de functie zijn begonnen, je had de parameters klaar...

Maar dan moet je “die methode die de eerste letter naar hoofdletters converteert” aanroepen.

### El Problema

Entonces, ¿cuál es el problema de instalar paquetes en el entorno global de Python?

En algún momento, probablemente terminarás escribiendo muchos programas diferentes que dependen de **diferentes paquetes**. Y algunos de estos proyectos en los que trabajas dependerán de **diferentes versiones** del mismo paquete. 😱

### O Problema

Então, qual é o problema em instalar pacotes no ambiente global do Python?

Em algum momento, você provavelmente acabará escrevendo muitos programas diferentes que dependem de **pacotes diferentes**. E alguns desses projetos em que você trabalha dependerão de **versões diferentes** do mesmo pacote. 😱

        testData.clear();
        testData.add(createRelatedQuery("test", new String[] { "updated" }, ""));
        mockBhv.setTestData(testData);

        relatedQueryHelper.update();
        // Give a moment for async execution
        try {
            Thread.sleep(100);
        } catch (InterruptedException e) {
            // ignore
        }

        results = relatedQueryHelper.getRelatedQueries("test");