code: function reset(method, key) {
      if (exports.results.has(method)) {
          if (key)
              return exports.results.get(method).del(key);
          else
              return exports.results.get(method).reset();
      }
  }
docs: Reset a cached method call's results (all or only for given key).
  @param method Method name for cache to clear
  @param key Key for method result set to clear