phaser3-rex-plugins/templates/ui/tweaker/gameobjects/folder/BindingTargetMethods.js

Plugins of phaser3

export default {
    setBindingTarget(target) {
        var child = this.childrenMap.child;  // tweaker
        if (child.setBindingTarget) {
            child.setBindingTarget(target);
        }
        return this;
    },
}