add infer_variance for ParamSpec #172
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For compatibility with Python 3.12, which adds this undocumented parameter along with the existing covariant/contravariant ones. Intentionally leaving this undocumented: it's here in case we want to make variance on ParamSpec mean something later, but it currently has no supported use.
AlexWaygood
approved these changes
May 22, 2023
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For compatibility with Python 3.12, which adds this undocumented
parameter along with the existing covariant/contravariant ones.
Intentionally leaving this undocumented: it's here in case we want
to make variance on ParamSpec mean something later, but it currently
has no supported use.