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Add experimental support for PEP 661 (Sentinels) #10565

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Add experimental support for PEP 661 (Sentinels)#10565
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addressed in next versionIssue is fixed and will appear in next published versionenhancement requestNew feature or request
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@erictraut
erictraut
opened on Jun 8, 2025

PEP 661 was deferred from Python 3.14, but the Sentinel type was recently added to typing_extensions for experimental usage.

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    addressed in next versionIssue is fixed and will appear in next published versionenhancement requestNew feature or request

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