This docstring needs to contain the following:
1. The purpose of this new response type (why are we adding it)
2. An example that shows a GOOD radiobutton use case. The example use case in the text of this pull request is not a good use case - the first and second answers don't relate to the question being asked, and the correct answer doesn't even make use of this new functionality. Make me understand why we have this response type instead of just a multiple choice question.
3. Another example that shows the use case with checkboxes.