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[];\n if (!rows.length) return [];\n\n // val-scoped 는 객체 배열, legacy global 은 배열의 배열을 준다.\n // 어느 쪽에 붙어도 깨지지 않게 형태를 보고 분기한다.\n if (!Array.isArray(rows[0])) return rows as T[];\n\n const cols: string[] = res.columns ?? 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