Optional jsonld: anyA function that wraps the getProperty function, which client code can use if it is needed to identify when the json value of a property is an IRI -- Internationalized Resource Identifier
If the value of the json value is a bare string, then it will be wrapped in a json object with the string in the property 'id', additionally that property will have a property 'isIRI' which will be true for the literal string case, otherwise false meaning the returned getProperty should be parsed as before.
accessor Rotation is an object with x,y,z attributes whose values are a counter-clockwise rotation in degrees about the fixed coordinate system axes.