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我试图深入了解 Google 计费，尤其是您遵循的规则。

考虑 Google Cloud Platform 上“托管区域”的情况。根据 Google DNS 中的“托管区域”文档，按月按小时计费

托管区域定价是根据一次存在的托管区域的数量计算的，按它们存在的月份的百分比按比例分配。这种按比例分配是按小时计算的。存在不到一小时的区域被视为存在一小时。

–谷歌云 DNS – 定价

但是，根据“Cloud Billing Catalog API”，单位“services/FA26-5236-B8B5/skus/8C22-6FC3-D478”按月按每秒计费。

{
    "name": "services/FA26-5236-B8B5/skus/8C22-6FC3-D478",
    "skuId": "8C22-6FC3-D478",
    "description": "ManagedZone",
    "category": {
        "serviceDisplayName": "Cloud DNS",
        "resourceFamily": "Network",
        "resourceGroup": "DNS",
        "usageType": "OnDemand"
    },
    "serviceRegions": [
        "global"
    ],
    "pricingInfo": [
        {
            "summary": "",
            "pricingExpression": {
                "usageUnit": "mo",
                "usageUnitDescription": "month",
                "baseUnit": "s",
                "baseUnitDescription": "second",
                "baseUnitConversionFactor": 2505600,
                "displayQuantity": 1,
                "tieredRates": [
                    {
                        "startUsageAmount": 0,
                        "unitPrice": {
                            "currencyCode": "USD",
                            "units": "0",
                            "nanos": 200000000
                        }
                    },
                    {
                        "startUsageAmount": 25,
                        "unitPrice": {
                            "currencyCode": "USD",
                            "units": "0",
                            "nanos": 100000000
                        }
                    },
                    {
                        "startUsageAmount": 10000,
                        "unitPrice": {
                            "currencyCode": "USD",
                            "units": "0",
                            "nanos": 30000000
                        }
                    }
                ]
            },
            "aggregationInfo": {
                "aggregationLevel": "ACCOUNT",
                "aggregationInterval": "MONTHLY",
                "aggregationCount": 1
            },
            "currencyConversionRate": 1,
            "effectiveTime": "2020-02-07T17:41:49.051Z"
        }
    ],
    "serviceProviderName": "Google"
}

字段pricingInfo.0.pricingExpression.baseUnit提及s作为基本单位。

在这种情况下，在我看来，文档与 API 响应不一致。

它是否错误地解释了 API 响应？如果是这样，如何以一般方式（通过 API）确定计费使用的基本计量单位是什么？

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