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Cannot load the dataset split (in streaming mode) to extract the first rows.
Error code:   StreamingRowsError
Exception:    CastError
Message:      Couldn't cast
plan: string
description: string
duration: double
channels: struct<ant_r: struct<keys: list<item: struct<t: double, v: int64, ease: string>>>, ant_l: struct<key (... 506 chars omitted)
  child 0, ant_r: struct<keys: list<item: struct<t: double, v: int64, ease: string>>>
      child 0, keys: list<item: struct<t: double, v: int64, ease: string>>
          child 0, item: struct<t: double, v: int64, ease: string>
              child 0, t: double
              child 1, v: int64
              child 2, ease: string
  child 1, ant_l: struct<keys: list<item: struct<t: double, v: int64, ease: string>>>
      child 0, keys: list<item: struct<t: double, v: int64, ease: string>>
          child 0, item: struct<t: double, v: int64, ease: string>
              child 0, t: double
              child 1, v: int64
              child 2, ease: string
  child 2, pitch: struct<keys: list<item: struct<t: double, v: int64, ease: string>>>
      child 0, keys: list<item: struct<t: double, v: int64, ease: string>>
          child 0, item: struct<t: double, v: int64, ease: string>
              child 0, t: double
              child 1, v: int64
              child 2, ease: string
  child 3, z: struct<keys: list<item: struct<t: double, v: int64, ease: string>>>
      child 0, keys: list<item: struct<t: double, v: int64, ease: string>>
          child 0, item: struct<t: double, v: int64, ease: string>
              child 0, t: double
              child 1, v: int64
              child 2, ease: string
  c
...
 struct<phrases: list<item: struct<start: double, pitch: struct<keys: list<item: struct<t: double, v: (... 166 chars omitted)
  child 0, phrases: list<item: struct<start: double, pitch: struct<keys: list<item: struct<t: double, v: double, ease: s (... 149 chars omitted)
      child 0, item: struct<start: double, pitch: struct<keys: list<item: struct<t: double, v: double, ease: string>>>, l (... 137 chars omitted)
          child 0, start: double
          child 1, pitch: struct<keys: list<item: struct<t: double, v: double, ease: string>>>
              child 0, keys: list<item: struct<t: double, v: double, ease: string>>
                  child 0, item: struct<t: double, v: double, ease: string>
                      child 0, t: double
                      child 1, v: double
                      child 2, ease: string
          child 2, loudness: struct<keys: list<item: struct<t: double, v: double, ease: string>>>
              child 0, keys: list<item: struct<t: double, v: double, ease: string>>
                  child 0, item: struct<t: double, v: double, ease: string>
                      child 0, t: double
                      child 1, v: double
                      child 2, ease: string
          child 3, vibrato: struct<freq: double, amp: double, delay: double>
              child 0, freq: double
              child 1, amp: double
              child 2, delay: double
20260820-163143_a_slow_dreamy_waltz_swaying_in_3_4_time_: list<item: string>
  child 0, item: string
to
{'20260820-163143_a_slow_dreamy_waltz_swaying_in_3_4_time_': List(Value('string'))}
because column names don't match
Traceback:    Traceback (most recent call last):
                File "/src/services/worker/src/worker/utils.py", line 147, in get_rows_or_raise
                  return get_rows(
                      dataset=dataset,
                  ...<4 lines>...
                      column_names=column_names,
                  )
                File "/src/libs/libcommon/src/libcommon/utils.py", line 272, in decorator
                  return func(*args, **kwargs)
                File "/src/services/worker/src/worker/utils.py", line 127, in get_rows
                  rows_plus_one = list(itertools.islice(safe_iter(ds, dataset=dataset), rows_max_number + 1))
                File "/src/services/worker/src/worker/utils.py", line 483, in safe_iter
                  yield from ds.decode(False) if ds.features else ds
                File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2840, in __iter__
                  for key, example in ex_iterable:
                                      ^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2373, in __iter__
                  for key, pa_table in self._iter_arrow():
                                       ~~~~~~~~~~~~~~~~^^
                File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2398, in _iter_arrow
                  for key, pa_table in self.ex_iterable._iter_arrow():
                                       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
                File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 536, in _iter_arrow
                  for key, pa_table in iterator:
                                       ^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 419, in _iter_arrow
                  for key, pa_table in self.generate_tables_fn(**gen_kwags):
                                       ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 343, in _generate_tables
                  self._cast_table(pa_table, json_field_paths=json_field_paths),
                  ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 132, in _cast_table
                  pa_table = table_cast(pa_table, self.info.features.arrow_schema)
                File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2378, in table_cast
                  return cast_table_to_schema(table, schema)
                File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2306, in cast_table_to_schema
                  raise CastError(
                  ...<3 lines>...
                  )
              datasets.table.CastError: Couldn't cast
              plan: string
              description: string
              duration: double
              channels: struct<ant_r: struct<keys: list<item: struct<t: double, v: int64, ease: string>>>, ant_l: struct<key (... 506 chars omitted)
                child 0, ant_r: struct<keys: list<item: struct<t: double, v: int64, ease: string>>>
                    child 0, keys: list<item: struct<t: double, v: int64, ease: string>>
                        child 0, item: struct<t: double, v: int64, ease: string>
                            child 0, t: double
                            child 1, v: int64
                            child 2, ease: string
                child 1, ant_l: struct<keys: list<item: struct<t: double, v: int64, ease: string>>>
                    child 0, keys: list<item: struct<t: double, v: int64, ease: string>>
                        child 0, item: struct<t: double, v: int64, ease: string>
                            child 0, t: double
                            child 1, v: int64
                            child 2, ease: string
                child 2, pitch: struct<keys: list<item: struct<t: double, v: int64, ease: string>>>
                    child 0, keys: list<item: struct<t: double, v: int64, ease: string>>
                        child 0, item: struct<t: double, v: int64, ease: string>
                            child 0, t: double
                            child 1, v: int64
                            child 2, ease: string
                child 3, z: struct<keys: list<item: struct<t: double, v: int64, ease: string>>>
                    child 0, keys: list<item: struct<t: double, v: int64, ease: string>>
                        child 0, item: struct<t: double, v: int64, ease: string>
                            child 0, t: double
                            child 1, v: int64
                            child 2, ease: string
                c
              ...
               struct<phrases: list<item: struct<start: double, pitch: struct<keys: list<item: struct<t: double, v: (... 166 chars omitted)
                child 0, phrases: list<item: struct<start: double, pitch: struct<keys: list<item: struct<t: double, v: double, ease: s (... 149 chars omitted)
                    child 0, item: struct<start: double, pitch: struct<keys: list<item: struct<t: double, v: double, ease: string>>>, l (... 137 chars omitted)
                        child 0, start: double
                        child 1, pitch: struct<keys: list<item: struct<t: double, v: double, ease: string>>>
                            child 0, keys: list<item: struct<t: double, v: double, ease: string>>
                                child 0, item: struct<t: double, v: double, ease: string>
                                    child 0, t: double
                                    child 1, v: double
                                    child 2, ease: string
                        child 2, loudness: struct<keys: list<item: struct<t: double, v: double, ease: string>>>
                            child 0, keys: list<item: struct<t: double, v: double, ease: string>>
                                child 0, item: struct<t: double, v: double, ease: string>
                                    child 0, t: double
                                    child 1, v: double
                                    child 2, ease: string
                        child 3, vibrato: struct<freq: double, amp: double, delay: double>
                            child 0, freq: double
                            child 1, amp: double
                            child 2, delay: double
              20260820-163143_a_slow_dreamy_waltz_swaying_in_3_4_time_: list<item: string>
                child 0, item: string
              to
              {'20260820-163143_a_slow_dreamy_waltz_swaying_in_3_4_time_': List(Value('string'))}
              because column names don't match

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Reachy Mini - Generated Moves

Moves generated by the reachy-mini-text-to-motion Space (natural language -> motion clip -> 50 Hz recorded-move JSON).

Each generation produces three files under moves/:

File Content
<stamp>_<slug>.json Standard Reachy Mini recorded-move JSON (50 Hz), playable by the SDK/daemon
<stamp>_<slug>.clip.json The LLM-authored source: per-channel curves with easing + oscillators
<stamp>_<slug>.meta.json Prompt, model, timestamp, generated description
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