How to use the enoslib.infra.enos_g5k.configuration.Configuration function in enoslib

def init(self, config, force=False):
        LOGGER.debug("Building enoslib configuration")
        enoslib_conf = _build_enoslib_conf(config)
        conf = Configuration.from_dictionnary(enoslib_conf)
        LOGGER.debug("Creating G5K provider")
        g5k = provider.G5k(conf)
        LOGGER.info("Initializing G5K provider")
        roles, networks = g5k.init(force)
        _provision(roles)
        return roles, networks

def destroy(self, env):
        conf = env.get('config')
        LOGGER.debug("Building enoslib configuration")
        enoslib_conf = _build_enoslib_conf(conf)
        conf = Configuration.from_dictionnary(enoslib_conf)
        LOGGER.debug("Creating G5K provider")
        g5k = provider.G5k(conf)
        LOGGER.info("Destroying G5K deployment")
        g5k.destroy()