Error while invoking datastructure

[agnibhu13]

I am following the examples from:
https://pandasdmx.readthedocs.io/en/v1.0/example.html

Then encountered this error.
Python 3.12.1
pandasdmx-1.6.0

estat = sdmx.Request('ESTAT')
metadata = estat.datastructure('UNE_RT_A')
Traceback (most recent call last):
File "<pyshell#3>", line 1, in
metadata = estat.datastructure('UNE_RT_A')
File "C:\Users\deepu\AppData\Local\Programs\Python\Python312\Lib\site-packages\pandasdmx\api.py", line 440, in get
response.raise_for_status()
File "C:\Users\deepu\AppData\Local\Programs\Python\Python312\Lib\site-packages\requests\models.py", line 1021, in raise_for_status
raise HTTPError(http_error_msg, response=self)
requests.exceptions.HTTPError: 404 Client Error: for url: https://ec.europa.eu/eurostat/SDMX/diss-web/rest/datastructure/ESTAT/UNE_RT_A/latest?references=all