1/** 2 * the ut for parent node has since tag version, and some child nodes's version is null 3 * 4 * @since 7 5 */ 6export class Test { 7 8 id: number; 9 /** 10 * @since 7 11 */ 12 name: string; 13 /** 14 * @since 8 15 */ 16 age: number; 17}