How can we load from specific checkpoints use checkpointer?

[wj210]

I save the model during certain timesteps so at the end of the run i would have multiple checkpoints,
the files are saved as ckpt-1000, ckpt-2000 ...

If for example, i would like to load the files and evaluate the agent with the loaded variables for each checkpoint, how do i go about?
The initialise_or_restore function doesnt seem to take in any file names.

Is there a way to do this?

[sguada]

You can use policy_loader.load() to load a saved policy and evaluate it.

See policy_loader_test.py