rxinference does not support predictions functionality

[albertpod]

Currently, there is no possibility of feeding Missing types into the inference function.
Similarly to the inference function, rxinference should support the following: e.g.

rxinference(model = mymodel(),  data = data, predictvars = (o = KeepLast(),), autoupdates = myautoupdates,)

[bvdmitri]

@Chengfeng-Jia
This task has been added to the milestone for tracking and prioritization.

There is no need to fully complete this issue for now, please let us know how far can you push it

[Chengfeng-Jia]

Thank you, I will take care of this issue.

[albertpod]

I've removed this issue from the milestone. We will handle it after #181