Is it possible to change data in an after middleware for a StreamedJsonResponse?

[macropay-solutions]

#49873 (comment)

For example we want to transform something like this

{
    "has_more_pages": true,
...
    "data": {
        {"id": 1, "relation": {"id": 1}},
        ... more streamed data
    }
}

into

{
    "has_more_pages": true,
...
    "data": {
        {"id": 1, "relationId": 1},
        ... more streamed data
    }
}

in an after middleware. Is that possible?

[macropay-solutions]

It seems like it, by using the $old = $response->getCallback() and $response->setCallback($new);