Read ISI export file?

How do I read an ISI export file (extract below) using Pybliographer
1.3? I see that there's a synactic ISI parser, but whatever I try it
stumbles on the PT field.

FN ISI Export Format
VR 1.0
PT J
AU Guilding, R
AF Guilding, Ruth
TI The shared vision of John Piper and John Betjeman - How to like
   everything
...

Thanks,
Hamish

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