lerobot/tests/data/pusht/observation/meta.json

{"image": {"device": "cpu", "shape": [50, 3, 96, 96], "dtype": "torch.float32"}, "state": {"device": "cpu", "shape": [50, 2], "dtype": "torch.float32"}, "shape": [50], "device": "cpu", "_type": "<class 'tensordict._td.TensorDict'>"}