code: protected function parseCommandArguments()
      {
          $this->path = $this->argument('path');
  
          if ($this->option('delay')) {
              if (false === ($this->delay = filter_var($this->option('delay'), FILTER_VALIDATE_INT, ['options' => ['min_range' => 0]]))) {
                  throw new \InvalidArgumentException('Delay should be a positive integer or 0.');
              }
          }
  
          if ($this->option('ttr')) {
              if (false === ($this->ttr = filter_var($this->option('ttr'), FILTER_VALIDATE_INT, ['options' => ['min_range' => 1]]))) {
                  throw new \InvalidArgumentException('TTR should be a positive integer.');
              }
          }
  
          if ($this->option('priority')) {
              if (false === ($this->priority = filter_var($this->option('priority'), FILTER_VALIDATE_INT, ['options' => ['min_range' => 0]]))) {
                  throw new \InvalidArgumentException('Priority should be a positive integer or 0.');
              }
          }
      }
docs: {@inheritdoc}