Remove `self` from close callback args.
Make `_get_response` and wait for cursor to ask.
Remove cursor by setting table entry to `nil`.
Fix scope on callback and options.
Rewrite `next` and friends for the new interface.
Remove parts of the cursor interface that are not going to be implemented.
Comment out tests that aren't being worked on.
Fix `receive` returning partial.
Rename `errors` module to fix name collisions.
Leave the token as an old valid query.
Feeds aren't separate from cursors.
Remove received token and len from buffer.
Callback is stored under `cb` attribute.
Remove separate feed from response type actions.
`_prompt_next` is part of `_prompt_cont` now.
Remove `_close_asap` logic.
Concatenate strings.
Use the `is_array` function.
Check `is_instance`.
`is_instance` only works on `'table'` type.