Declarative Extensions — SQLAlchemy 2.0.0b1 documentation
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Sqlalchemy/docs/latest/orm/extensions/declarative/index
Declarative Extensions
Extensions specific to the Declarative mapping API.
Changed in version 1.4: The vast majority of the Declarative extension is now integrated into the SQLAlchemy ORM and is importable from the sqlalchemy.orm namespace. See the documentation at Declarative Mapping for new documentation. For an overview of the change, see Declarative is now integrated into the ORM with new features.
