local __TS__DescriptorSet
do
    local getmetatable = _G.getmetatable
    local ____rawget = _G.rawget
    local rawset = _G.rawset
    function __TS__DescriptorSet(self, metatable, key, value)
        while metatable do
            local descriptors = ____rawget(metatable, "_descriptors")
            if descriptors then
                local descriptor = descriptors[key]
                if descriptor ~= nil then
                    if descriptor.set then
                        descriptor.set(self, value)
                    else
                        if descriptor.writable == false then
                            error(
                                ((("Cannot assign to read only property '" .. key) .. "' of object '") .. tostring(self)) .. "'",
                                0
                            )
                        end
                        descriptor.value = value
                    end
                    return
                end
            end
            metatable = getmetatable(metatable)
        end
        rawset(self, key, value)
    end
end