How to use the @capacitor/core.StatusBarStyle.Dark function in @capacitor/core

changeStatusBar() {
    Plugins.StatusBar.setStyle({
      style: this.isStatusBarLight ? StatusBarStyle.Dark : StatusBarStyle.Light
    });
    this.isStatusBarLight = !this.isStatusBarLight;
  }

mounted() {
    for (const selector of metaSelectors) {
      document.querySelector(selector).content = this.newStatusbarColor
    }
    StatusBar.setBackgroundColor({ color: this.newStatusbarColor }).catch(this.$helpers.err)
    StatusBar.setStyle({ style: StatusBarStyle.Dark }).catch(this.$helpers.err)
  },
  beforeRouteLeave(to, from, next) {

this.platform.ready().then(() => {
      if (this.platform.is('capacitor')) {
        StatusBar.setStyle({
          style: StatusBarStyle.Dark
        });
      }
    });
  }