Easing for time remapping?

I got to try some of the new mlt keyframe types this week, and (aside from being mostly undocumented beyond being semi-descriptively named), they are a very welcome addition.

I thought I remembered someone mentioning the new mlt in relation to easing with the timeremapping too though, but I’m not seeing any way to do that. Am I missing something, or is that still a Future Thing to look forward to?