Near the top of the doc it says, "Responses are JSON encoded in the form of:"
Must have missed that - but what caused me to be more confused was that the response data field names appear to have '-' symbols in them, making them unsuitable for json decoded to object format in most languages (since variables cannot have minus signs in the names); they will only ever be able to be decoded into associative array format. This made me think it was actually XML I was looking at.
Ah, yeah, that makes sense. The aimed-at format was for associative arrays. But it can be changed to work for languages that decode to variables instead.
