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1# This file is part of Hypothesis, which may be found at
2# https://github.com/HypothesisWorks/hypothesis/
3#
4# Copyright the Hypothesis Authors.
5# Individual contributors are listed in AUTHORS.rst and the git log.
6#
7# This Source Code Form is subject to the terms of the Mozilla Public License,
8# v. 2.0. If a copy of the MPL was not distributed with this file, You can
9# obtain one at https://mozilla.org/MPL/2.0/.
12class UniqueIdentifier:
13 """A factory for sentinel objects with nice reprs."""
15 def __init__(self, identifier):
16 self.identifier = identifier
18 def __repr__(self):
19 return self.identifier
22infer = ...
23not_set = UniqueIdentifier("not_set")