The five.intid documentation states the following pattern for retrieving the IntID for an object:
from five.intid import site
intids = site.get_intids(app.plone)
intid_obj = intids.getId(app.plone.restrictedTraverse('path/to/object')
Is this the canoncical way also in Plone or is there some helper/utility method available wrapping the code above?