/**
 * @name Singleton
 * @desc 싱글톤 패턴 적용을 위한 상속자
 */
export default class Singleton {
  [key:string]:any;
  public static instance:any;

  public static getInstance(){
    if(this.instance) {
      return this.instance;
    }
    this.instance = new this();
    return this.instance;
  }
}