text: const reportWebVitals = onPerfEntry => {
    if (onPerfEntry && onPerfEntry instanceof Function) {
      import('web-vitals').then(({ getCLS, getFID, getFCP, getLCP, getTTFB }) => {
        getCLS(onPerfEntry)
        getFID(onPerfEntry)
        getFCP(onPerfEntry)
        getLCP(onPerfEntry)
        getTTFB(onPerfEntry)
      })
    }
  }
  
  export default reportWebVitals
  