def find_deleted(self, previous=[], current=[], exception_map={}):
        prev_map = {item.location(): item for item in previous}
        curr_map = {item.location(): item for item in current}

        item_locations = list(set(prev_map).difference(set(curr_map)))
        item_locations = [item_location for item_location in item_locations if not self.locationInExceptionMap(item_location, exception_map)]
        list_deleted_items = [prev_map[item] for item in item_locations]

        for item in list_deleted_items:
            deleted_change_item = ChangeItem.from_items(old_item=item, new_item=None)
            app.logger.debug("%s: %s/%s/%s deleted" % (self.i_am_singular, item.account, item.region, item.name))
            self.deleted_items.append(deleted_change_item)
Find any items that have been deleted since the last run of the watcher.
dataset/ETHPy150Open Netflix/security_monkey/security_monkey/watcher.py/Watcher.find_deleted