src/vs/workbench/contrib/snippets/browser/snippetsService.ts/SnippetUsageTimestamps/constructor
class SnippetUsageTimestamps:	constructor(
		@IStorageService private readonly _storageService: IStorageService,
	) {

		const raw = _storageService.get(SnippetUsageTimestamps._key, StorageScope.PROFILE, '');
		let data: [string, number][] | undefined;
		try {
			data = JSON.parse(raw);
		} catch {
			data = [];
		}

		this._usages = Array.isArray(data) ? new Map(data) : new Map();
	}