Turning string into MARC record

This seems like such a stupid question - I've used MARC::Batch for years - but how do you turn a MARC record string into a MARC::Record object?

I've always started with a file of MARC records and cycle through them with MARC::Batch. Now I have a single MARC record in a string - no file, it's retrieved by Z39.50. I could have sworn I've done this before but I can't find anything in the documentation. Do I have to somehow assign it to a file handle à la "open (MARC, '<', \$rawmarc);" and pass that it in to MARC::Batch? I'm willing to do that but I really could swear there was a simpler way to do it, avoiding MARC::Batch altogether.

Arvin