':type parent: ServiceResource
:param parent: The resource instance to which this action is attached.
:type params: dict
:param params: Request parameters sent to the service.
:type response: dict
:param response: Low-level operation response.'

def __call__(self, parent, params, response):

    if (self.search_path and (self.search_path != '$')):
        response = jmespath.search(self.search_path, response)
    return response
