task_categories:robotics task_categories:video-classification task_categories:image-to-text license:apache-2.0 size_categories:100K<n<1M format:parquet format:optimized-parquet modality:image modality:timeseries library:datasets library:dask library:polars library:mlcroissant region:us vla-arena robotics multimodal imitation-learning vision-language-action lerobot openpi