Retrieve the options when this is a new access control plugin
Overrides ArgumentValidatorPluginBase::defineOptions
protected function defineOptions() {
$options = parent::defineOptions();
$options['type'] = array(
'default' => 'uid',
);
$options['restrict_roles'] = array(
'default' => FALSE,
'bool' => TRUE,
);
$options['roles'] = array(
'default' => array(),
);
return $options;
}