Implementation of custom types

-- Will return metatable.__typename if present instead of always "table"

__lazy = __lazy or {}
if not __lazy.type then
    __lazy.type = type
    function type(var)
        local _type = __lazy.type(var);
        if(_type ~= "table" and _type ~= "userdata") then
            return _type;
        end
        local _meta = getmetatable(var);
        if(_meta ~= nil and _meta.__typename ~= nil) then
            return _meta.__typename;
        else
            return _type
        end
    end
end