Kaba class i16 ed

class i16
    var high: u8
    var low: u8

    # operators
    func pure __str__() -> string        # str(i16) -> string
    func pure __i32__() -> i32           # i32(i16) -> i32
    func static __assign__(a: i16, b: i16) # i16 = i16
    func mut __assign__(o: i32)          # i16 = i32