Return separators with choices, too, when using checkboxes

I've ran into a situation in which I had to get from a checkbox list not only the choices, but also their separators. This was because I had to pick the possible choices from a nested dictionary, where the keys of the external dictionary were the separators and the keys of the internal dictionaries were their choices. Something like this:

{
    separator1: {
        possible_choice1,
        ...
        possible_choiceN
    },
    separator2: {
        possible_choiceN+1,
        ...
        possible_choiceN+M
    },
    ...
}

The problem here is that the prompt only returns the choices, not their separators! But I have to elaborate them on a nested separator-choice for-cycle, so with only a list of choices I simply can't. For instance, I mean I have to do something like this:

for separator in dictionary:
    for choice in dictionary[separator]:
        # do stuff

Do you think it is possible to have the prompt return the separators, too? I was thinking that maybe an optional argument could be added to the prompt function which, if passed, adds to the returned choices list their separators. Something like choice (separator), so that the string can be processed to obtain both the choice and the separator and a nested dictionary like the one above, but only with the user choices, can be created.

CITGuru / PyInquirer

Return separators with choices, too, when using checkboxes #141