[chuck-users] Are array types really classes ?

Hi list, I am currently learning Chuck, so I this may sound like a silly question. The language specification states that arrays are objects, but I can't find the proper syntax to declare a class that extends an array type. Since, as far as I understood, float[] is a reference to an array of floats, I was not really surprised that Chuck does not accept "class foo extends float[]", but what would the proper syntax be, if that is possible at all ? Thanks