source: vendor/guzzlehttp/promises/src/AggregateException.php

<?php

declare(strict_types=1);

namespace GuzzleHttp\Promise;

/**
 * Exception thrown when too many errors occur in the some() or any() methods.
 */
class AggregateException extends RejectionException
{
    public function __construct(string $msg, array $reasons)
    {
        parent::__construct(
            $reasons,
            sprintf('%s; %d rejected promises', $msg, count($reasons))
        );
    }
}