def determine(cls, event, verb=None):
        """
        Determine if the event verb is a crud_type (without the 'R') event.

        :param event:
        :type event: models.Event
        :param verb: The event verb to examine.
        :type verb: str
        :returns: The CrudType state object.
        :rtype: CrudType
        """
        verb = verb or event.verb

        for enum in CrudType:
            if verb.endswith(enum.value):
                return enum

        Determine if the event verb is a crud_type (without the 'R') event.

        :param event:
        :type event: models.Event
        :param verb: The event verb to examine.
        :type verb: str
        :returns: The CrudType state object.
        :rtype: CrudType
        
djstripe/event_handlers.py