@Cache_this(limit=3, ignore_args=())
    def K(self, X, X2=None):
        r = self._scaled_dist(X, X2)
        return self.K_of_r(r)
Adds or replaces directives in a config block.
dataset/ETHPy150Open SheffieldML/GPy/GPy/kern/src/stationary.py/Stationary.K--crossover with--dataset/ETHPy150Open letsencrypt/letsencrypt/certbot-nginx/certbot_nginx/parser.py/_add_directives