I have two properties, one of which must be supplied. I was trying to add a comment at the bottom of the data structure but it was ignored. So I tried a multi line description but that was also ignored:
# Data Structures
## Record (object)
+ ResponseId: `42f7b8b07da641bcb6d96422cb903c0e` (string, optional) - Identifier for the record being updated
+ UniqueReference: 1 (number, optional) - Reference for the record being updated.
If both are supplied, response id will be used