View file vendor/laravel/framework/src/Illuminate/Queue/Failed/PrunableFailedJobProvider.php

<?php

namespace Illuminate\Queue\Failed;

use DateTimeInterface;

interface PrunableFailedJobProvider
{
    /**
     * Prune all of the entries older than the given date.
     *
     * @param  \DateTimeInterface  $before
     * @return int
     */
    public function prune(DateTimeInterface $before);
}