docs: def record_patch(rec, diff):
      """Return the JSON-compatible structure that results from applying the
      changes in `diff` to the record `rec`. The parameters must be structures
      compatible with json.dumps *or* strings compatible with json.loads. Note
      that by design, `old == record_patch(new, record_diff(old, new))`"""
      rec, diff = _norm_json_params(rec, diff)
      return json_delta.patch(rec, diff, in_place=False)