[Koha] Import holds?

Our little (24K items) library has successfully moved from Mandarin to Koha as of Tuesday. I was able to import the catalog, patrons, and checkouts (issues) from Mandarin by writing scripts to convert Mandarin-generated data to Koha-compatible data. The one missing thing is holds (reserves). I'm still looking for a way to generate a holds report in Mandarin, but assuming I can generate such a report, I don't see a way to import hold information into Koha. I was able to use KOC files to import issues, but the KOC file format doesn't support holds. I was wondering if there is some other way to import holds programmatically, or if anyone else has had to deal with this problem when migrating to Koha.