base_driver.py

BaseDriver(object):
    implements(INodeDriver)
    ...
    def create_node(self, image_id, data, ...):
        params = self.__transform_params(**{image_id, data, ...})
        ...
        self.request(action, params, headers=self.__headers(), data=self.__encode_data(data))

    def __transform_params(self, **params):
        """ Override this in provider-specific NodeDriver """
        return params