TypeError: Cannot create a consistent method resolution order (MRO) for bases Kernel, KeopsKernelMixin, ABC

[HengYuD]

Hi, the work is awesome, but I meet some error when try to run demo.
I try to install the env by the guide, but falkon cannot install. So I use the latest version falkon installed.
It seems has trouble with bases
Could you provide some help or have any suggests for ply points cloud surface reconstruction methods?

https://colab.research.google.com/drive/1Vl5fGPvP0VlYDP-cJphl-9RgEFBYH6AE?usp=sharing

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Traceback (most recent call last):
File "/content/neural-splines/fit.py", line 8, in
from neural_splines import load_point_cloud, fit_model_to_pointcloud, eval_model_on_grid, point_cloud_bounding_box
File "/content/neural-splines/neural_splines/init.py", line 8, in
from .falkon_kernels import NeuralSplineKernel, LaplaceKernelSphere, LinearAngleKernel
File "/content/neural-splines/neural_splines/falkon_kernels.py", line 29, in
class NeuralSplineKernel(Kernel, KeopsKernelMixin, ABC):
File "/usr/lib/python3.10/abc.py", line 106, in new
cls = super().new(mcls, name, bases, namespace, **kwargs)
TypeError: Cannot create a consistent method resolution
order (MRO) for bases Kernel, KeopsKernelMixin, ABC