code: function(method, sId) {
              sId = sId || method;
              sId = this.options.prefix+"."+sId;
              return this.addMethod(method, {
                  fallback: function(args, options, method) {
                      return Storage.get(sId+"."+method);
                  },
                  after: function(args, results, options, method) {
                      Storage.set(sId+"."+method, results);
                  }
              });
          }
docs: Add a cached method for offline mode only
  
  @method addCachedMethod
  @param {string} method name for this method
  @param {string} [sId] id used for caching