UxDataArray.astype() should return UxDataArray, not xarray.DataArray

[Sevans711]

Version

2026.08.1

How did you install UXarray?

Source

What happened?

(Bug discovered by @erogluorhan) Calling UxDataArray.astype(...) returns an xarray.DataArray.

What did you expect to happen?

It should return a UxDataArray instead.

Can you provide a MCVE to repoduce the bug?

import uxarray as ux
uxarr = ux.tutorial.open_dataset('quad-hexagon')['t2m']
result = uxarr.astype('float64')
type(result)  # expected UxDataArray; got xarray.DataArray.