How to use the vue-property-decorator.Vue.delete function in vue-property-decorator

clearAlarm(name: string): boolean {
    const alarm = this.getAlarm(name);
    if (alarm) {
      if (alarm.handler) {
        if (alarm.periodInMinutes) {
          clearInterval(alarm.handler);
        } else {
          clearTimeout(alarm.handler);
        }
      }
      Vue.delete(this.alarms, name);
      return true;
    }
    return false;
  }
  clearAllAlarm(): boolean {

set energyCostPS(value) {
    if (value) {
      if (!this.abilityData.energyCostPS)
        Vue.set(this.abilityData, "energyCostPS", value)
      else
        this.abilityData.energyCostPS = value;
    } else if (this.abilityData.energyCostPS) {
      Vue.delete(this.abilityData, "energyCostPS")
    }
  }
  get energyCostN() { return this.abilityData.energyCostN }

set hasMinValue(value) {
    if (value) {
      Vue.set(this.apv, "minValue", 0);
    } else {
      Vue.delete(this.apv, "minValue");
    }
  }
  set minValue(value) {

Object.keys(this.badgeTextArray).forEach((k) => {
          const badge = this.badgeTextArray[k];
          if (badge) {
            if (badge[tab.index]) {
              Vue.delete(badge, `${tab.index}`);
            }
          }
        });
        Object.keys(this.badgeBackgroundColorArray).forEach((k) => {

clearAlarm(name: string): boolean {
      const alarm = this.getAlarm(name);
      if (alarm) {
        if (alarm.handler) {
          if (alarm.periodInMinutes) {
            clearInterval(alarm.handler);
          } else {
            clearTimeout(alarm.handler);
          }
        }
        Vue.delete(this.alarms, name);
        return true;
      }
      return false;
    }
    clearAllAlarm(): boolean {

set hasBuff(value) {
    if (!this.abilityData.props)
      this.abilityData.props = {};
    if (!value)
      Vue.delete(this.abilityData.props, "Buff");
    else if (!this.abilityData.props.Buff)
      Vue.set(this.abilityData.props, "Buff", {})
  }

LeekWars.post('moderation/warn', {target: fault.target.id, reason: fault.reason, message: this.message, severity: this.severity, parameter: this.selectedFault.parameter}).then(data => {
				LeekWars.toast(i18n.t('moderation.warning_sent') as string)
				this.faults.splice(this.faults.indexOf(fault), 1)
				Vue.delete(this.faultsById, '' + fault.id)
				this.warningConfirmDialog = false
				this.$router.push('/moderation')
			}).error(error => {
				LeekWars.toast(error)

set energyCostN(value) {
    if (value) {
      if (!this.abilityData.energyCostN)
        Vue.set(this.abilityData, "energyCostN", value)
      else
        this.abilityData.energyCostN = value;
    } else if (this.abilityData.energyCostN) {
      Vue.delete(this.abilityData, "energyCostN")
    }
  }

set energyCost(value) {
    if (value) {
      if (!this.abilityData.energyCost)
        Vue.set(this.abilityData, "energyCost", value)
      else
        this.abilityData.energyCost = value;
    } else if (this.abilityData.energyCost) {
      Vue.delete(this.abilityData, "energyCost")
    }
  }
  get energyCostPS() { return this.abilityData.energyCostPS }