src/vs/code/electron-browser/sharedProcess/contrib/extensionsCleaner.ts/ProfileExtensionsCleaner/fromKey
class ProfileExtensionsCleaner:	private fromKey(key: string): { identifier: IExtensionIdentifier; version: string } | undefined {
		const [id, version] = getIdAndVersion(key);
		return version ? { identifier: { id }, version } : undefined;
	}