oot);
     *     // Changing a property on the instance will propagate to bindings
     *     // in the template
     *     instance.myProp = 'new value';
     *
     * Users of `Templatizer` may need to implement the following abstract
     * API's to determine how properties and paths from the host should be
     * forwarded into to instances:
     *
     *     _forwardHostPropV2: function(prop, value)
     *
     * Likewise, users may implement these additional abstract API's to determine
     * how inst