Call handleCSVFile method from documentPicker didPickDocumentsAt method in iOS

TableViewController.swift

public func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL]) {
    guard let myURL = urls.first else {
       return
    }
    print("import result : \(myURL)")
    if let data = handleCSVFile(url: myURL) {
        cells = data
        tableView.reloadData()
    }
}