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    "currentness": "VERIFIED_AS_OF",
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    "summary": "DataFrame・列式の処理・lazy queryに使う表データ処理エンジンです。",
    "tool_type": "表データ処理エンジン",
    "access_modes": [
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      "other language APIs"
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      "列式の処理",
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    ],
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      "接続先または入力ファイルを確認する"
    ],
    "suitable_for": "PolarsでCSVの列を選んで集計するなど、DataFrameを選択して使いたい場面。",
    "unsuitable_for": "別libraryとAPIやnullの扱いが同じだと思い込む用途。",
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      "data transformation"
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