TypeScript 返回数组(映射)索引错误

type SubOptionType = {
  year: number
  zest: number
}

type OptionType = Partial<SubOptionType> & {
  id: number
  label: string
}

const optionList = useMemo(() => {
    return option.map((opt) => Object.keys(opt).filter((keyVal) => !removeItems.includes(keyVal)))
  }, [option])


<Autocomplete   
      renderTags={(tagValue) =>
        tagValue.map((tag: OptionType, index) => (
          <LabelChips key={tag.id} size="small" text={tag.label} >
            {optionList[index].map((el) => tag[el])}
          </LabelChips>
        ))
      }
/>

const option = [
    { id: 1, label: 'Casablanca', zest: 3000, year: 1950 },
    { id: 2, label: 'Psycho', zest: 3000, year: 1950 },
    { id: 3, label: 'The Green Mile', zest: 3000, year: 1950 },
    { id: 4, label: 'The Intouchables', zest: 3000, year: 1950 },
]

const optionList =
[
    [
        "zest",
        "year"
    ],
    [
        "zest",
        "year"
    ],   
]

tagValue.map(tag) => tag = { 
    "id": 1,
    "label": "Casablanca",
    "zest": 3000,
    "year": 1950
}

错误部分:

{optionList[index].map((el) => tag[el])}&lt；==错误点！

错误名称:

在选项类型中，找不到包含该类型参数的索引签名.

如何对签名进行索引？

我希望用Typescript 来解决这个问题.