Help on zibee.parseDescriptionAsMap

Is there anyplace where the Map resulting from zibee.parseDescriptionAsMap is fully documented?

Looking through various postings, I see the Map can have the following keys:
raw:, dni: endpoint:, cluster:, size:0A, attrId:, encoding:, command:, value:, clusterInt:, attrInt:

One thing I was wondering - I understand there can sometimes be multiple attributes, but it looks like the map only reports one. What happens if there are multiple? Is there another key which would present an array of attributes?
Any other map keys that one should be aware of?

You can examine the published Hubitat drivers examples for a possible way to parse the additional attributes :