{
 "description": "Per set: the set's own processed object cloud (+ contact) at the set's task1_start and second-object cloud (+ contact) at its task2_start, for recordings whose stored copy (episodes.json source_set) comes from another set and differs at those frames. LeRobotEpisodes(root, split=<set>) substitutes them so build_library reproduces library/<set>.npz exactly.",
 "counts": {
  "quantity_50": 0,
  "quantity_20": 20,
  "quantity_10": 10,
  "quantity_5": 5,
  "diversity_11obj_x4": 4,
  "diversity_4obj_x11": 23,
  "diversity_7obj_x6+2": 31
 }
}