docs: public void setEnabled(boolean enable, GVRContext gvrContext) {
          if (this.enabled != enabled ) {
              // a change in the animation stopping / starting
              for (GVRNodeAnimation gvrKeyFrameAnimation : gvrKeyFrameAnimations) {
                  if (enable) gvrKeyFrameAnimation.start(gvrContext.getAnimationEngine());
                  else {
                      gvrKeyFrameAnimation.setRepeatMode(GVRRepeatMode.ONCE);
                  }
              }
              this.enabled = enable;
          }
      }