TypeError: HealpyGridInfo.__init__() got an unexpected keyword argument 'nside'

[tinaok]

Issue Description:

I encountered an issue in the create_grid function of the xarray-healpy project. When executing the code block below in the healpix_regrid.ipynb notebook, I encountered a TypeError:

grid = create_grid(nside=nside, rot=rot)
grid

The error message is as follows:

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
File <timed exec>:1

File ~/xarray-healpy/xarray_healpy/grid.py:218, in create_grid(nside, rot)
    217 def create_grid(nside, rot={"lat": 0, "lon": 0}):
--> 218     return HealpyGridInfo(nside=nside, rot=rot)

TypeError: HealpyGridInfo.__init__() got an unexpected keyword argument 'nside'