TS7018 error in generated typescript

[bagley2014]

In the generated typescript there's a function m that gives a compiler error.

function m(additional: any) {
    return { props: [], additional };
}

The error is error TS7018: Object literal's property 'props' implicitly has an 'any[]' type.

Someone else may have had a similar issue (#1437) but their post is fairly vague. I created bagley2014/quicktype-bug-repro to make it easy for others to reproduce the error. npm install, npm run quicktype , and npm run build should repro the build error.