This is a convenience for working with the output of a federated computation, which is generally returned as a nested AnonymousTuple structure. Now, individual values can be extracted from the structure using:

  result = my_federated_computation()
  pprint(result['foo'])

This was previously possible using `getattr(result, 'foo')`; this change makes the existing functionality more discoverable.

PiperOrigin-RevId: 299964819