public function initializeArguments()
{
$this->registerAsArgument();
$this->registerArgument('contentUid', 'integer', 'If specified, this UID will be used to fetch content element data instead of using the current ' . 'content element.', false, 0);
$this->registerArgument('field', 'string', 'If specified, only this field will be returned/assigned instead of the complete content element record.');
}