The numba and python version the code runs at

[Guangyu-Joshua-Feng]

Hi, I am trying to run your code and find the code will report error no matter what numba version I tried with python version of 3.9. Do you know the version of numba and other environment settings for running the code?
In my case：problem happens in "from numba.np import npyimpl" called by "path, sim = dtw_path(target_k_cpu, output_k_cpu)"
Numba =0.53 or 0.56: Final error message from numba/np/npyimpl.py: kernel = kernels[ufunc]; KeyError: <ufunc 'invert'>
Numba == 0.47: Final error message: ImportError: cannot import name 'npyimpl' from 'numba.np'