Class A

test/orm/dml/test_bulk_statements.py:2551–2556

        Base = cls.DeclarativeBasic

        class A(Base):
            __tablename__ = "a"
            id: Mapped[int] = mapped_column(
                Integer, Identity(), primary_key=True
            )
            cs = relationship("C")

        class B(Base):
            __tablename__ = "b"