[Groff] Include PostScript

[manday]

Hello,

I think this must be an awfully weird question but no matter where I
look I seen not to be able to figure out how to include an external
post-script document (in my case an eps image) in my document.

I've been looking everywhere! The only thing I can find is .psbb in man
7 groff but it doesnt do anything.

Is there any command that does that? And is there maybe a preprocessor
or macro package which is related to that?

Thanks