GetOptionKit\OptionCollection::keys PHP Method

    public function keys()
    {
        return array_merge(array_keys($this->longOptions), array_keys($this->shortOptions));
    }

 /**
  * Check if an option is one of the option in the collection
  */
 public function anyOfOptions(OptionCollection $options)
 {
     $name = $this->getOptionName();
     $keys = $options->keys();
     return in_array($name, $keys);
 }