interface AttributeBagInterface

interface AttributeBagInterface extends SessionBagInterface {
    
    /**
     * Checks if an attribute is defined.
     */
    public function has(string $name) : bool;
    
    /**
     * Returns an attribute.
     */
    public function get(string $name, mixed $default = null) : mixed;
    
    /**
     * Sets an attribute.
     */
    public function set(string $name, mixed $value) : void;
    
    /**
     * Returns attributes.
     *
     * @return array<string, mixed>
     */
    public function all() : array;
    public function replace(array $attributes) : void;
    
    /**
     * Removes an attribute.
     *
     * @return mixed The removed value or null when it does not exist
     */
    public function remove(string $name) : mixed;

}