Ability to document AMQP input

[pennstatephil]

I've been using rest docs and they work great for HTTP calls, but I have some microservices where the only input is a queue (i.e. read email messages off a queue). I'd like to somehow document the input of the message format to this queue (JSON body, required/optional fields, etc) but I don't believe there is currently a way to do it with rest docs... is there any way to expand this library (or is there a parallel project somewhere) that would programmatically allow me to generate this information?

[pennstatephil]

If this is too close to #373, please feel free to close as duplicate (just found that)

[wilkinsona]

Yep, I think this is a duplicate of #373.