src/Console/PeekCommand.php
protected function parseCommandArguments()
    {
        $this->state = strtolower($this->argument('state'));
        if (! in_array($this->state, ['ready', 'buried', 'delayed'])) {
            throw new \InvalidArgumentException("Invalid state '$this->state'.");
        }
    }
protected function parseCommandArguments()
    {
        $this->state = strtolower($this->argument('state'));
        if (! in_array($this->state, ['ready', 'buried', 'delayed'])) {
            throw new \InvalidArgumentException("Invalid state '$this->state'.");
        }
    }
{@inheritdoc}