local function __TS__InstanceOf(obj, classTbl)
    if type(classTbl) ~= "table" then
        error("Right-hand side of 'instanceof' is not an object", 0)
    end
    if classTbl[Symbol.hasInstance] ~= nil then
        return not not classTbl[Symbol.hasInstance](classTbl, obj)
    end
    if type(obj) == "table" then
        local luaClass = obj.constructor
        while luaClass ~= nil do
            if luaClass == classTbl then
                return true
            end
            luaClass = luaClass.____super
        end
    end
    return false
end