元素隐式地具有“ any”类型，因为类型没有索引签名

Question

我有一个json文件，该文件是从打字稿项目中的外部库中导入的。但是，当尝试访问json-data[config.company]中的对象时，出现错误：

Element implicitly has an 'any' type because type '{ "company": { "delta": { "marketing": { "employee1": string; "employee2": string; };  has no index signature.ts(7017)

如何在此处为json数据声明索引签名？

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图书馆

myjson.json

{
    "company": {
        "delta": {
            "marketing": {
                "employee1": "abc999",
                "employee2": "abc777"
            }
        }
    }
}

index.ts

import data = require('./src/myjson.json');
export {data};

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主要项目

file.ts

import { data } from 'project/lib';

const config = {
    company: argv.company as any | undefined || 'company',

};

const details = data[config.company];