迭代器类型错误

[oscar20200122]

运行环境:
openjdk 11.0.6 2020-01-14
OpenJDK Runtime Environment (build 11.0.6+10-post-Ubuntu-1ubuntu118.04.1)
OpenJDK 64-Bit Server VM (build 11.0.6+10-post-Ubuntu-1ubuntu118.04.1, mixed mode, sharing)
emacs:26
`---@Class Car
---@field public name string @add name field to class Car, you'll see it in code completion
local cls = class()

---@return Car[]
local function createCars()
end

---@type table<string, Car>
local dict = {}

local car = dict['key']
-- car. and you'll see completion

for key, car in pairs(createCars()) do
-- car. and you'll see completion
end
`