Add acqf import inside a TYPE_CHECKING block#6484
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not522 merged 1 commit intooptuna:masterfrom Mar 2, 2026
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TYPE_CHECKING block
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Motivation
The import of optuna._gp.acqf was used only for type hints.
Moving it under TYPE_CHECKING avoids runtime imports and potential circular dependencies.
Description of the changes
Tests
Part of #6029