def encode(self, obj):
pb_out = super(RecordEncoder, self).encode(obj)
out = ZMapTransformOutput()
out.transformed = pb_out.transformed.SerializeToString()
out.certificates = [c.SerializeToString() for c in pb_out.certificates]
out.public_keys = [pk.SerializeToString() for pk in pb_out.public_keys]
return out
