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      "公式の利用開始案内でcoverage.pyの対応環境・導入方法・利用条件を確認し、検証用の環境へ用意します。"
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    "purpose": "coverage.pyでtestが通ったコード範囲を確認する",
    "composition": "coverage.py + Python",
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      "coverage下でtestを実行する",
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