文档似乎暗示可以移动骨头：
https://developers.google.com/ar/develop/java/sceneform/animation/
Bones are movable by animation or accessed as a node via the SkeletonNode class. When bones are accessed as a Node, the new positions are overwritten every frame by animation if one is playing.
但是我似乎找不到任何示例。我有一个要导入的模型，我想通过移动骨骼来手动设置动画。
如何为场景模型的骨骼设置动画？