{ "impl": "fast", "action_mode": "libero_joint", "vocab_size": 256, "tokens_per_action": 1, "normalization": { "expects_normalized_actions": false }, "action_dim": 7, "group_slices": [ [ 0, 7 ] ], "max_fit_samples": 250000, "kmeans_iters": 25, "fast": { "fast_model_id": "physical-intelligence/fast", "use_fast_backend": true, "enable_fit": true, "backend_available": false, "backend_error": "No module named 'fast'" } }