AttributeError: module 'kaolin.ops.conversions' has no attribute 'FlexiCubes'

[Devininthelab]

Hi I'm trying to run the notebook example and encountered this issue:

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AttributeError                            Traceback (most recent call last)
Cell In[4], line 8
      5 vertices = vertices - (vmax + vmin) / 2 # Center mesh on origin
      6 gt_mesh.vertices = vertices * scale # Rescale to [-0.9, 0.9]
----> 8 fc = kal.ops.conversions.FlexiCubes(device)
      9 x_nx3, cube_fx8 = fc.construct_voxel_grid(voxel_grid_res)
     10 x_nx3 *= 2 # scale up the grid so that it's larger than the target object

AttributeError: module 'kaolin.ops.conversions' has no attribute 'FlexiCubes'

I have looked through the previous pull request but haven't found the solution. Any suggestion for this?