How to get the output as object and not as a set of lines when targeting JSONSchema?

I am using `quicktype-core` as a library in my app.

My code looks like:
```
const qtInputData = new InputData();
const qtData = { name: 'SomeName', samples: [jsonString] }
const qtMagic = () => jsonInputForTargetLanguage(new JSONSchemaTargetLanguage(), undefined, false)
qtInputData.addSourceSync("json", qtData, qtMagic)
const qtResult = quicktypeMultiFileSync({
lang: new JSONSchemaTargetLanguage(),
inputData: qtInputData

});

const schema = combineRenderResults(qtResult).lines.join('')
```

At which point `schema` is a string and I need to `JSON.parse`. I am fairly confident that internally Quicktype has that parsed already. How can I get the JSONSchema as object directly?