* Convert event-tracking to TypeScript
* Convert local-storage to TypeScript
* Convert mapSeries to TypeScript
* Convert SessionStorage to TypeScript
* Convert account-upgrade to TypeScript
* Convert isValidTeXFile to TypeScript
* Convert date functions to TypeScript
* Convert EventEmitter to TypeScript
* Convert isNetworkError to TypeScript
* Convert webpack-public-path to TypeScript
* Convert displayNameForUser to TypeScript
GitOrigin-RevId: 79c5a2d1101fcd520f3116f0f4af29d974189d94
