I am reviewing the documentation regarding Smart Home Skills, and specifically am currently looking at the Discovery portion (https://developer.amazon.com/docs/device-apis/alexa-discovery.html).
Most of it seems to make sense, until you get to the end and look at the second "example" that is provided ("Discover.Response example for a video skill").
The last capability in the second example has an extra property that doesn't seem to be documented - "supportedOperations". While conceptually, I think it makes sense for it to be there, it doesn't seem to be documented besides happening to appear in the example. The documentation earlier in the page for capability lists out the possible properties (https://developer.amazon.com/docs/device-apis/alexa-discovery.html#capability-object). This allows for optional "properties.supported", "proactivelyReported", and "retrievable" - but no supportedOperations.
Is the example valid and this is just a documentation "oops"? If so, are there any other properties that I should be aware of?