File: //snap/certbot/4965/lib/python3.12/site-packages/setuptools/__pycache__/_itertools.cpython-312.pyc
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Wrap an iterable to raise a ValueError if non-unique values are encountered.
>>> list(ensure_unique('abc'))
['a', 'b', 'c']
>>> consume(ensure_unique('abca'))
Traceback (most recent call last):
...
ValueError: Duplicate element 'a' encountered.
zDuplicate element z
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