    deferred class
    	WEL_REFERENCE_TRACKABLE

    General
    	cluster: wel
    	description: "Facility to track references of an object."

    Ancestors
    	WEL_OBJECT_ID_MANAGER

    Queries
    	exists: BOOLEAN
    	object_id: INTEGER_32
    	reference_tracked: BOOLEAN
    	references_count: INTEGER_32
    	shared: BOOLEAN

    Commands
    	decrement_reference
    	delete
    	enable_reference_tracking
    	increment_reference