Add `BoundedTensorSpec` support to `FlatPathFromStructuredValue`
Add `BoundedTensorSpec` support to `FlatPathFromStructuredValue`

PiperOrigin-RevId: 319949709
Change-Id: Ia85cc87c14beaa608d98a666d9d618af45be371e

deepmind/reverb,deepmind/reverb,deepmind/reverb,deepmind/reverb