Hi,

is there an easy way to apply a function to the items returned by
association_proxy? Currently, I have a setup like this: A->B->C, both
one-to-many relations; A.C (association_proxy('B','C')) returns a list
of lists but I would like to apply a function (list(chain.from_iterable
(x))) that flattens it to a simple list. What what be the best way to
implement this?

Cheers,

Adrian
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