How to use the @dpc-sdp/ripple-global/utils/helpers.js.isExternalUrl function in @dpc-sdp/ripple-global

created: function () {
    if (!isAnchorLink(this.href) && isRelativeUrl(this.href)) {
      this.isNuxtLink = this.rplOptions.nuxt
    }
    // Set link target for non nuxt-links
    if (this.target.length === 0) {
      if (isExternalUrl(this.href, this.rplOptions.hostname)) {
        this.linkTarget = '_blank'
      }
    } else {
      this.linkTarget = this.target
    }
  }
}

iconSymbol () {
      if (this.link.url.indexOf('tel:') > -1) {
        return 'phone_number'
      } else {
        return isExternalUrl(this.link.url, this.rplOptions.hostname) ? 'external_link' : 'arrow_right_primary'
      }
    },
    filterLink () {

iconSymbolFinal () {
      if (isExternalUrl(this.url, this.rplOptions.hostname)) {
        return 'external_link'
      }
      return this.iconSymbol
    }
  }

iconSymbol () {
      return isExternalUrl(this.link.url, this.rplOptions.hostname) ? 'external_link' : 'arrow_right_primary'
    }
  },

iconSymbol () {
      return isExternalUrl(this.link.url, this.rplOptions.hostname) ? 'external_link' : 'arrow_right_primary'
    }
  },

isExternalLink () {
      return isExternalUrl(this.url, this.rplOptions.hostname)
    }
  }

isExternalLink () {
      return isExternalUrl(this.url, this.rplOptions.hostname)
    }
  }