@expose.expose(wtypes.text, wtypes.text)
    def methods(self, driver_name):
        if driver_name not in _VENDOR_METHODS:
            topic = pecan.request.rpcapi.get_topic_for_driver(driver_name)
            ret = pecan.request.rpcapi.get_driver_vendor_passthru_methods(
                pecan.request.context, driver_name, topic=topic)
            _VENDOR_METHODS[driver_name] = ret

        return _VENDOR_METHODS[driver_name]
Retrieve information about vendor methods of the given driver.
dataset/ETHPy150Open openstack/ironic/ironic/api/controllers/v1/driver.py/DriverPassthruController.methods