Is it possible to still run the V1 model with the latest API? Or only V2

I'm trying to create a build only using the V1 model and one of the V2 model to be able to compare them.

- Is it possible to choose which one is built using specific bazel build options?
Like running:

For V2:
``` bash
bazel build -c opt lyra:soundstream_encoder
```
and
For V1:
``` bash
bazel build -c opt lyra:lyra_encoder
```

---
- Or would I need to build using an older commit of the repository?