{ "state": { "joint_pos": { "start": 0, "end": 14 } }, "action": { "joints": { "start": 0, "end": 14 } }, "video": { "head": { "original_key": "observation.images.head" }, "left_wrist": { "original_key": "observation.images.left_wrist" }, "right_wrist": { "original_key": "observation.images.right_wrist" } }, "annotation": { "human.action.task_description": { "original_key": "task_index" } } }