function __TS__ObjectRest(target, usedProperties)
    local result = {}
    for property in pairs(target) do
        if usedProperties[property] == nil then
            result[property] = target[property]
        end
    end
    return result
end

local ____ = {
    a = "A",
    b = "B",
    c = "C",
    d = "D",
}
a = ____.a
b = ____.b
rest = __TS__ObjectRest(____, {
    a = true,
    b = true,
    rest = true,
})