import Base from './base'
class BackToTop extends Base {
  constructor (attr) {
    super(attr)
    this.fileUrl = attr.fileUrl || null
    this.fileId = attr.fileId || null
    this.duration = attr.duration || 300
    this.fixedPosition = attr.fixedPosition || false
    this.closeBtn = attr.closeBtn || false
  }
}
export default BackToTop