Don't recurse into attrs objects when serializing
We need to use our serialization hook recursively to make sure that we can deserialize nested data structures.
Test Plan
Will be used in further commits.
Migrated from D3422 (view on Phabricator)
Staging instance, all changes can be removed at any time
We need to use our serialization hook recursively to make sure that we can deserialize nested data structures.
Will be used in further commits.
Migrated from D3422 (view on Phabricator)