Allow partial domain reduction when there is a combination of continous and discrete parameter

[ericbumbalough]

Is your feature request related to a problem? Please describe.
Domain reduction and discrete parameters were two of the feature that made me choose this repo. I'd like to use them together.

Describe the solution you'd like
Can we just ignore discrete parameters when using domain reduction? Or maybe use floor function to handle ints?

References or alternative approaches

Additional context

Are you able and willing to implement this feature yourself and open a pull request?

• Yes, I can provide this feature.