code: function (items, namespace) {
              return can.each(items, function (item) {
                  if (item && item.unbind) {
                      item.unbind("change" + namespace);
                  }
              });
          }
docs: ## can/observe/observe.js ## observe.js `can.Observe` _Provides the observable pattern for JavaScript Objects._ Returns `true` if something is an object with properties of its own.