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Mike Bayer
e616c2fb3c
mapper property attribute, it will be called to get the actual attribute value during initialization. Currently, there's no advantage to using @classproperty on a column or relationship attribute of a declarative class that isn't a mixin - evaluation is at the same time as if @classproperty weren't used. But here we at least allow it to function as expected. - docs for column_property() with declarative - mixin docs in declarative made more clear - mixins are optional - each subsection starts with, "in *declarative mixins*", to reduce confusion