I have an Xarray.Dataset with the coordinates ‘range’ and ‘time’.

How can I access the values of coordinate named ‘range’ to add a static scalar like 200 for example?

# imports
import xarray as xr
import numpy as np

time = pd.date_range("2006-02-21", freq="s", periods=4)
print(time)

# create a small xarray
da = xr.DataArray(np.random.randn(4, 4), dims=("range", "time"), coords={"time": time})

# add a coordinate to this array with shifts to apply to each rows
da=da.assign_coords(range=('range', [1.56,5.233,10.98,17.43]))
print(da)

The aimed result should be this:

Coordinates:
  * range    (range) float64 201.56 205.233 210.98 217.43```

This is not working:
```da.range = da.range + 200```