{
  "state": {
    "single_arm": { "start": 0, "end": 5 },
    "gripper": { "start": 5, "end": 6 }
  },
  "action": {
    "single_arm": { "start": 0, "end": 5 },
    "gripper": { "start": 5, "end": 6 }
  },
  "video": {
    "laptop": { "original_key": "observation.images.laptop" },
    "phone": { "original_key": "observation.images.phone" }
  }
}