text: import HAR from 'har'
  
  export function transformHeaders (headers) {
      const ret = []
  
      for (let key in headers) {
          let header = headers[key]
  
          if (typeof header !== 'string') {
              header = JSON.stringify(header)
          }
  
          ret.push(new HAR.Header({
              name: key,
              value: header
          }))
      }
  
      return ret
  }
  