QBankApi.php
public function categories()
    {
        if (!$this->categories instanceof CategoriesController) {
            $this->categories = new CategoriesController($this->getClient(), $this->cachePolicy, $this->cache);
            $this->categories->setLogger($this->logger);
        }

        return $this->categories;
    }
public function categories()
    {
        if (!$this->categories instanceof CategoriesController) {
            $this->categories = new CategoriesController($this->getClient(), $this->cachePolicy, $this->cache);
            $this->categories->setLogger($this->logger);
        }

        return $this->categories;
    }
public function categories ( ) { if ( ! $ this -> categories instanceof CategoriesController ) { $ this -> categories = new CategoriesController ( $ this -> getClient ( ) , $ this -> cachePolicy , $ this -> cache ) ; $ this -> categories -> setLogger ( $ this -> logger ) ; } return $ this -> categories ; }
Categories defines which PropertySets should be available for Media. All Media belongs to exactly one Category.

@return CategoriesController
Categories defines which PropertySets should be available for Media . All Media belongs to exactly one Category .