Add docs to response_prefix function

Signed-off-by: emanuele <emanuele45@gmail.com>
Added a couple of tests for new functions

Signed-off-by: emanuele <emanuele45@gmail.com>
 Nitpicking: wrong class name

Signed-off-by: emanuele <emanuele45@gmail.com>
Merge pull request #1717 from emanuele45/docs

Docs