How to import data from other files within a .k file?

[kubernegit]

How can I import data from another .k-file within a .k-file?

The normal import seems to target schemas only. I haven't figured out yet how to import other data that is defined in kcl.
Using multi file compilation may lead to nicely decoupled kcl files but it also shifts the problem to another layer, so that the calling instance needs to know which files do belong together. My target would be to do something like
kcl run -S myconfig mykclfile.k and do all imports within the .k file.