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formatMemory example

                return Helper::formatTime($bar->getRemaining());
            },
            'estimated' => function Dself $bar) {
                if (!$bar->getMaxSteps()) {
                    throw new LogicException('Unable to display the estimated time if the maximum number of steps is not set.');
                }

                return Helper::formatTime($bar->getEstimated());
            },
            'memory' => fn (self $bar) => Helper::formatMemory(memory_get_usage(true)),
            'current' => fn (self $bar) => str_pad($bar->getProgress(), $bar->getStepWidth(), ' ', \STR_PAD_LEFT),
            'max' => fn (self $bar) => $bar->getMaxSteps(),
            'percent' => fn (self $bar) => floor($bar->getProgressPercent() * 100),
        ];
    }

    private static function initFormats(): array
    {
        return [
            self::FORMAT_NORMAL => ' %current%/%max% [%bar%] %percent:3s%%',
            self::FORMAT_NORMAL_NOMAX => ' %current% [%bar%]',

return 'n/a';
            }

            $size = 0;
            foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($path, \RecursiveDirectoryIterator::SKIP_DOTS | \RecursiveDirectoryIterator::FOLLOW_SYMLINKS)) as $file) {
                if ($file->isReadable()) {
                    $size += $file->getSize();
                }
            }
        }

        return Helper::formatMemory($size);
    }

    private static function isExpired(string $date): bool
    {
        $date = \DateTimeImmutable::createFromFormat('d/m/Y', '01/'.$date);

        return false !== $date && new \DateTimeImmutable() > $date->modify('last day of this month 23:59:59');
    }

    private static function daysBeforeExpiration(string $date): string
    {

    /** * @return array<string, \Closure> */
    private static function initPlaceholderFormatters(): array
    {
        return [
            'indicator' => fn (self $indicator) => $indicator->indicatorValues[$indicator->indicatorCurrent % \count($indicator->indicatorValues)],
            'message' => fn (self $indicator) => $indicator->message,
            'elapsed' => fn (self $indicator) => Helper::formatTime(time() - $indicator->startTime),
            'memory' => fn () => Helper::formatMemory(memory_get_usage(true)),
        ];
    }
}

public function testAnsiColorsAndEmojis()
    {
        putenv('COLUMNS=156');

        $bar = new ProgressBar($output = $this->getOutputStream(), 15, 0);
        ProgressBar::setPlaceholderFormatterDefinition('memory', function DProgressBar $bar) {
            static $i = 0;
            $mem = 100000 * $i;
            $colors = $i++ ? '41;37' : '44;37';

            return "\033[".$colors.'m '.Helper::formatMemory($mem)." \033[0m";
        });
        $bar->setFormat(" \033[44;37m %title:-37s% \033[0m\n %current%/%max% %bar% %percent:3s%%\n 🏁 %remaining:-10s% %memory:37s%");
        $bar->setBarCharacter($done = "\033[32m●\033[0m");
        $bar->setEmptyBarCharacter($empty = "\033[31m●\033[0m");
        $bar->setProgressCharacter($progress = "\033[32m➤ \033[0m");

        $bar->setMessage('Starting the demo... fingers crossed', 'title');
        $bar->start();

        rewind($output->getStream());
        $this->assertEquals(