docs: public void  copy(GVRPose src)
      {
          int numbones = getNumBones();
  
          if (getSkeleton() != src.getSkeleton())
              throw new IllegalArgumentException("GVRPose.copy: input pose does not have same skeleton as this pose");
          src.sync();
          for (int i = 0; i < numbones; ++i)
          {
              mBones[i].copy(src.getBone(i));
          }
      }