{
  "synthetic": true,
  "scope": "Invented editorial learning data. Python reference checks only; not a bank export, vendor template, executed M query, authenticated software import or compatibility proof.",
  "topic": "TP-017",
  "account_alias": "operating-A",
  "currency": "USD",
  "period": "2026-09",
  "monthly_activity": [
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    },
    {
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    },
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  ],
  "expense_filtered_activity": [
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    },
    {
      "alias": "M3",
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    }
  ],
  "already_recorded_aliases": [
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  "expected": {
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    "filtered_rows": 2,
    "filtered_net": "-40.00",
    "new_candidate_aliases": [
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    ]
  }
}
