src/vs/workbench/contrib/editSessions/browser/editSessionsFileSystemProvider.ts/EditSessionsFileSystemProvider/stat
class EditSessionsFileSystemProvider:	async stat(resource: URI): Promise<IStat> {
		const content = await this.readFile(resource);
		const currentTime = Date.now();
		return {
			type: FileType.File,
			permissions: FilePermission.Readonly,
			mtime: currentTime,
			ctime: currentTime,
			size: content.byteLength
		};
	}