* Remove wait_for & associated params
* Upgrade command dict to top-level, remove more wait_for accessories
* We don't need all this anymore
* Update docs
* Update tests to new argspec
* Be a little more explicit about sendonly
Also remove reference to the word provider.
* Add example of prompt and answer
* Revert "commented out check tests (#35788)"
This reverts commit 3df2561405.
* `discard_changes()` now uses `exit discard`
instead of just `discard`. Also a slight tweak to avoid a second `exit` after
`exit discard`
