docs: def _checkContactType(self, contactType):
          """
          Possibly emit some warnings about C{contactType}'s implementation of
          L{IContactType}.
  
          @type contactType: L{IContactType} provider
          """
          if getattr(contactType, 'getEditFormForPerson', None) is None:
              warn(
                  "IContactType now has the 'getEditFormForPerson'"
                  " method, but %s did not implement it." % (
                      contactType.__class__,),
                  category=PendingDeprecationWarning)
  
          if getattr(contactType, 'getEditorialForm', None) is not None:
              warn(
                  "The IContactType %s defines the 'getEditorialForm'"
                  " method, which is deprecated.  'getEditFormForPerson'"
                  " does something vaguely similar." % (contactType.__class__,),
                  category=DeprecationWarning)