problems reading SAC file using obspy

Question

I'm trying to read a .SAC file using obspy with this code

from obspy import read as obsread

st = obsread('II.NNA.00.BH1.M.2023.215.221206.SAC', debug_headers=True)

but I'm getting

TypeError: Unknown format for file II.NNA.00.BH1.M.2023.215.221206.SAC