{
  "kind": "synthetic_teaching_example",
  "not_customer_code": true,
  "initial_cart": {
    "version": 11,
    "quantity": 0
  },
  "intent": {
    "intent_id": "A1",
    "payload": {
      "product_id": "SKU-54",
      "quantity": 1,
      "requirement_version": 2
    },
    "payload_sha256": "3a718fbba666f3019aaef75858106afbaceed07dc7124789160551d6112ba0b7"
  },
  "retry": {
    "intent_id": "A1",
    "payload": {
      "product_id": "SKU-54",
      "quantity": 1,
      "requirement_version": 2
    },
    "payload_sha256": "3a718fbba666f3019aaef75858106afbaceed07dc7124789160551d6112ba0b7"
  },
  "receipt": {
    "receipt_id": "R1",
    "intent_id": "A1",
    "payload_sha256": "3a718fbba666f3019aaef75858106afbaceed07dc7124789160551d6112ba0b7",
    "status": "committed",
    "cart_version": 12,
    "product_id": "SKU-54",
    "quantity": 1
  },
  "invariants": [
    "相同动作号和相同内容只产生一次变更",
    "相同动作号但内容不同必须报冲突，不当作新意图",
    "旧需求查询只能留作诊断，不进入当前推荐",
    "恢复先核回执和业务状态，不重放已经完成的写入"
  ],
  "excluded": [
    "支付",
    "库存保留",
    "身份鉴权",
    "完整幂等存储实现",
    "崩溃期间分布式事务实现"
  ]
}