mattalbr commented on issue #33802:
URL: https://github.com/apache/beam/issues/33802#issuecomment-4483802385
So, a handful of months later I learned of an unfortunate side-effect of the
lack of generics -- I ended up writing these instead of
```
@dataclass.dataclass()
class NeatOutputClass[T]:
data: T
```
as
```
@dataclass.dataclass()
class NeatOutputClass:
data: Any
```
which prohibits us from using RowCoder and possibly (though I'm not quite
sure) results in data getting pickled. Unsurprisingly, this has been very bad
for performance of our pipeline. While I know we're unlikely to get full
generic support before 3.0, is there anything else we can do here?
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