Return Value of a Function

I need to return a row of data from a function. I've been looking the the HTML
docs and have found nothing of value. If I try to return a variable of type
RECORD, I get the following error:
NOTICE:  plpgsql: ERROR during compile of last_log near line 0
ERROR:  fmgr_info: function 0: cache lookup failed

I may have several other things wrong with this function, so my real question
is, "Can I return a value of type RECORD?"
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