嘗試測試我的 Firebase 云功能。我已按照文檔進行操作，但在運行測試時出現以下錯誤。我嘗試生成不同的密鑰，我通過 Firebase 進入服務密鑰窗口，所以它是正確的項目。運行測試時出現錯誤：npm testError: Options object {"_fieldsProto":{"foo":{"stringValue":"bar"}},"_ref":{"_firestore":{"_settings":{"credentials":{"private_key":"KEY","client_email":"[email protected]"},"projectId":"project","firebaseVersion":"8.13.0","libName":"gccl","libVersion":"3.8.6 fire/8.13.0"},"_settingsFrozen":false,"_serializer":{"allowUndefined":false},"_projectId":"project","registeredListenersCount":0,"_lastSuccessfulRequest":0,"_backoffSettings":{"initialDelayMs":100,"maxDelayMs":60000,"backoffFactor":1.3},"_preferTransactions":false,"_clientPool":{"concurrentOperationLimit":100,"maxIdleClients":1,"activeClients":{},"terminated":false,"terminateDeferred":{"promise":{}}}},"_path":{"segments":["document","path"],"projectId":"project","databaseId":"(default)"},"_converter":{}},"_serializer":{"allowUndefined":false},"_readTime":{"_seconds":1602169684,"_nanoseconds":285000000},"_createTime":{"_seconds":1602169684,"_nanoseconds":285000000},"_updateTime":{"_seconds":1602169684,"_nanoseconds":285000000}} has invalid key "_fieldsProto"    at /home//Desktop/Work/test-app/app/functions/node_modules/firebase-functions-test/lib/main.js:99:19    at Array.forEach (<anonymous>)    at _checkOptionValidity (/home//Desktop/Work/test-app/app/functions/node_modules/firebase-functions-test/lib/main.js:97:26)    at scheduledWrapped (/home//Desktop/Work/test-app/app/functions/node_modules/firebase-functions-test/lib/main.js:36:13)    at Object.<anonymous> (/home//Desktop/Work/test-app/app/functions/index.test.js:98:1)const test = require('firebase-functions-test')({     databaseURL: "####",     storageBucket: "####",     projectId: "#####",   }, './key.json');  const myFunctions = require('./index.js'); const wrapped = test.wrap(myFunctions.testFunction);const snap = test.firestore.makeDocumentSnapshot({foo: 'bar'}, 'document/path'); wrapped(snap); test.cleanup();