The Granule class is the root class from which all granule types are derived.
It has a class identifier of
Granules are 'constant': once created they don't change. Any 'live' data related to the granule is carried in the associated context data structure.
It has the following methods:
granule.getId(): get the unique identifier for this granule.
granule.getContext(): retrieve the context for this granule.
granule.getData(): retrieve the core data for this granule. In most cases this is a reference to the document-specific data structure for the granule. E.g. if the granule is an InDesignTextFrameGranule, the granule.getData() will retrieve the associated InDesign TextFrame object (or a proxy thereof).