How to use the @stencil/core.Ionic.isServer function in @stencil/core

getStories(type: string) {
    if (Ionic.isServer) return;

    // reset page number
    this.page = 1;

    // this is definitely not the best solution
    // working on something more elegant, but this
    // gets the job done for the moment
    switch (type) {
      case 'news':
        this.firstSelectedClass = true;
        this.secondSelectedClass = false;
        this.thirdSelectedClass = false;
        this.fourthSelectedClass = false;
        break;
      case 'show':
        this.secondSelectedClass = true;

comments(story: any) {
    if (Ionic.isServer) return;

    Ionic.controller('loading', { content: 'fetching comments...' }).then(loading => {
      loading.present();

      this.fakeFetch(`${this.apiRootUrl}/item/${story.id}`).then((data: { [key: string]: any }) => {
        setTimeout(() => {
          loading.dismiss().then(() => {
            Ionic.controller('modal', { component: 'comments-page', componentProps: { comments: data.comments, storyId: story.id } }).then(modal => {
              console.log('modal created');

              modal.present().then(() => {
                console.log('modal finished transitioning in, commments: ', modal.componentProps.comments);
              });
            });
          });
        }, 300);