ios – Convert Date to required format

I must convert 2022-01-20T00:00:00.000Z to “dd MMM yyy” format.
I’ve tried doing it as recommended in a stackoverflow reply nevertheless it returns nil

func convertDate(date:String)-> String{
    let dateFormatterGet = DateFormatter()
    dateFormatterGet.dateFormat =  "yyyy-MM-dd'T'HH:mm:ssZ"
    let dateFormatterPrint = DateFormatter()
    dateFormatterPrint.dateFormat = "dd MMM yyy"
    if let date = dateFormatterGet.date(from: String(dateinString)) {
       let convertedDate = dateFormatterPrint.string(from: date)
       return convertedDate
    } else {
       print("There was an error decoding the string")
    }
   return "nil"
}

Please assist me ,thanks upfront.