Can I use the sounding functions with Xarray data arrays?

[sgofferj]

I have arrived now at the metpy.calc functions and I am already sucecssfully using the wind speed function like this (ds10m is a dataset containing u and v at 10m):

ws10m = mpcalc.wind_speed(ds10m.metpy.parse_cf('u10'), ds10m.metpy.parse_cf('v10'))

However, I can't get the sounding functions to work. I have tried various variations of calling metpy.calc.bulk_shear but it always fails. I'm probably messing up the data types (again)...
My source data is:

tmppres = ds.metpy.parse_cf('t')
rhpres = ds.metpy.parse_cf('r')
ugrdpres = ds.metpy.parse_cf('u')
vgrdpres = ds.metpy.parse_cf('v')
p = ds['isobaricInhPa']

Last thing I tried was bs = mpcalc.bulk_shear(p,ugrdpres,vgrdpres,depth=3 * units.km) which failed with ValueError: Pressure and data variables must have the same length. - like the other variations I tried.

Is it possible at all to use the sounding functions with data arrays? Are there any examples?

[sgofferj]

Ah, never mind. I missed the Note part in the docs...