rs): mixed
    {
        if (preg_match('/^(diff|floatDiff)In(Real|UTC|Utc)?(.+)$/', $method, $match)) {
            $mode = strtoupper($match[2] ?? '');
            $betterMethod = $match[1] === 'floatDiff' ? str_replace('floatDiff', 'diff', $method) : null;

            if ($mode === 'REAL') {
                $mode = 'UTC';
                $betterMethod = str_replace($match[2], 'UTC', $betterMethod ?? $method);
            }

            if ($betterMethod) {
                @trigger_error(
                    "Use the method $betterMethod instead to make it more explicit about what it does.\n".
                    'On next major version, "float" prefix will be removed (as all diff are now returning floating numbers)'.
                    ' and "Real" methods will be removed in favor of "UTC" because what it actually does is to convert both'.
                    ' dates to UTC timezone before comparison, while by default it does it only if both dates don\'t have'.
                    ' exactly the same timezone (Note: 2 timezones with the same offset but different names are considered'.
                    " different as it's not safe to assume they will always have the same offset).",
                    \E_USER_DEPRECATED,
                );
            }

            $unit = self::pluralUnit($match[3]);
            $diffMethod = 'diffIn'.ucfirst($unit);

            if (\in_array($unit, ['days', 'weeks', 'months', 'quarters', 'years'])) {
                $parameters['utc'] = ($mode === 'UTC');
            }

            if (method_exists($this, $diffMethod)) {
                return $this->$diffMethod(...$parameters);
            }
        }

        return null;
    }

    private function callHumanDiffAlias(string $method, array $parameters): ?string
    {
        $diffSizes = [
            // @mode diffForHumans
            'short' => true,
            // @mode diffForHumans
            'long' => false,
        ];
        $diffSyntaxModes = [
            // @call diffForHumans
            'Absolute' => CarbonInterface::DIFF_ABSOLUTE,
            // @call diffForHumans
            'Relative' => CarbonInterface::DIFF_RELATIVE_AUTO,
            // @call diffForHumans
            'RelativeToNow' => CarbonInterface::DIFF_RELATIVE_TO_NOW,
            // @call diffForHumans
            'RelativeToOther' => CarbonInterface::DIFF_RELATIVE_TO_OTHER,
        ];
        $sizePattern = implode('|', array_keys($diffSizes));
        $syntaxPattern = implode('|', array_keys($diffSyntaxModes));

        if (preg_match("/^(?<size>$sizePattern)(?<syntax>$syntaxPattern)DiffForHuman$/", $method, $match)) {
            $dates = array_filter($parameters, function ($parameter) {
                return $parameter instanceof DateTimeInterface;
            });
            $other = null;

            if (\count($dates)) {
                $key = key($dates);
                $other = current($dates);
                array_splice($parameters, $key, 1);
            }

            return $this->diffForHumans($other, $diffSyntaxModes[$match['syntax']], $diffSizes[$match['size']], ...$parameters);
        }

        return null;
    }

    private function callIsMethod(string $unit, array $parameters): ?bool
    {
        if (!str_starts_with($unit, 'is')) {
            return null;
        }

        $word = substr($unit, 2);

        if (\in_array($word, static::$days, true)) {
            return $this->isDayOfWeek($word);
        }

        return match ($word) {
            // @call is Check if the current instance has UTC timezone. (Both isUtc and isUTC cases are valid.)
            'Utc', 'UTC' => $this->utc,
            // @call is Check if the current instance has non-UTC timezone.
            'Local' => $this->local,
            // @call is Check if the current instance is a valid date.
            'Valid' => $this->year !== 0,
            // @call is Check if the current instance is in a daylight saving time.
            'DST' => $this->dst,
            default => $this->callComparatorMethod($word, $parameters),
        };
    }

    private function callComparatorMethod(string $unit, array $parameters): ?bool
    {
        $start = substr($unit, 0, 4);
        $factor = -1;

        if ($start === 'Last') {
            $start = 'Next';
            $factor = 1;
        }

        if ($start === 'Next') {
            $lowerUnit = strtolower(substr($unit, 4));

            if (static::isModifiableUnit($lowerUnit)) {
                return $this->avoidMutation()->addUnit($lowerUnit, $factor, false)->isSameUnit($lowerUnit, ...($parameters ?: ['now']));
            }
        }

        if ($start === 'Same') {
            try {
                return $this->isSameUnit(strtolower(substr($unit, 4)), ...$parameters);
            } catch (BadComparisonUnitException) {
                // Try next
            }
        }

        if (str_starts_with($unit, 'Current')) {
            try {
                return $this->isCurrentUnit(strtolower(substr($unit, 7)));
            } catch (BadComparisonUnitException | BadMethodCallException) {
                // Try next
            }
        }

        return null;
    }

    private function callModifierMethod(string $unit, array $parameters): ?static
    {
        $action = substr($unit, 0, 3);
        $overflow = null;

        if ($action === 'set') {
            $unit = strtolower(substr($unit, 3));
        }

        if (\in_array($unit, static::$units, true)) {
            return $this->setUnit($unit, ...$parameters);
        }

        if ($action === 'add' || $action === 'sub') {
            $unit = substr($unit, 3);
            $utcUnit = $this->getUTCUnit($unit);

            if ($utcUnit) {
                $unit = static::singularUnit($utcUnit);

                return $this->{"{$action}UTCUnit"}($unit, ...$parameters);
            }

            if (preg_match('/^(Month|Quarter|Year|Decade|Century|Centurie|Millennium|Millennia)s?(No|With|Without|WithNo)Overflow$/', $unit, $match)) {
                $unit = $match[1];
                $overflow = $match[2] === 'With';
            }

            $unit = static::singularUnit($unit);
        }

        if (static::isModifiableUnit($unit)) {
            return $this->{"{$action}Unit"}($unit, $this->getMagicParameter($parameters, 0, 'value', 1), $overflow);
        }

        return null;
    }

    private function callPeriodMethod(string $method, array $parameters): ?CarbonPeriod
    {
        if (str_ends_with($method, 'Until')) {
            try {
                $unit = static::singularUnit(substr($method, 0, -5));

                return $this->range(
                    $this->getMagicParameter($parameters, 0, 'endDate', $this),
                    $this->getMagicParameter($parameters, 1, 'factor', 1),
                    $unit
                );
            } catch (InvalidArgumentException) {
                // Try macros
            }
        }

        return null;
    }

    private function callMacroMethod(string $method, array $parameters): mixed
    {
        return static::bindMacroContext($this, function () use (&$method, &$parameters) {
            $macro = $this->getLocalMacro($method);

            if (!$macro) {
                foreach ($this->getAllGenericMacros() as $callback) {
                    try {
                        return $this->executeCallable($callback, $method, ...$parameters);
                    } catch (BadMethodCallException) {
                        continue;
                    }
                }

                if ($this->isLocalStrictModeEnabled()) {
                    throw new UnknownMethodException($method);
                }

                return null;
            }

            return $this->executeCallable($macro, ...$parameters);
        });
    }

    private static function floorZeroPad(int|float $value, int $length): string
    {
        return str_pad((string) floor($value), $length, '0', STR_PAD_LEFT);
    }

    /**
     * @template T of CarbonInterface
     *
     * @param T $date
     *
     * @return T
     */
    private function mutateIfMutable(CarbonInterface $date): CarbonInterface
    {
        return $this instanceof DateTimeImmutable
            ? $date
            : $this->modify('@'.$date->rawFormat('U.u'))->setTimezone($date->getTimezone());
    }
}