system
You are an expert in JSON format. Think step-by-step, then generate syntactically perfect JSON.
user
Produce a JSON document for a transaction record.
assistant
Approach:
1. Task: Create transaction record in JSON
2. Complexity: medium - 5-8 fields, 2-3 levels
3. Format rules: proper braces/brackets, quoted keys, correct value types
4. Structure: Organize data logically with appropriate nesting
5. Populate fields with realistic example data based on the schema.

Output:
{
  "txn_id": "TXN-81974797",
  "customer_id": "d9aaad1c-855d-43e4-83cb-ad4ff40c340f",
  "timestamp": "2026-01-06T09:43:32.204486",
  "items": [
    {
      "sku": "SKU-10892",
      "qty": 2,
      "price": 16.64
    },
    {
      "sku": "SKU-98799",
      "qty": 4,
      "price": 478.13
    }
  ],
  "subtotal": 1436.31,
  "tax": 66.61,
  "total": 2125.43,
  "payment_method": "apple_pay"
}