Cannot call base class megic method

[amsitlab]

Cannot call base class magic method ( metamethod ) like BaseClass.__tostring or BaseClass.__eq .. That's very usefull feature for creating inheritance.
We can simply extending base/super class metamethod likes:

...
Thats = class('Thats', Base)
function Thats:__tostring()
   return Base.__tostring(self)
end

Thank.