func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
var requestedDict = self.arr3[indexPath.row].dictionaryValue
let cell:MasterCell = tableView.dequeueReusableCell(withIdentifier: "MasterCell") as! MasterCell
cell.btn2.setTitle("Accept", for: .normal)
cell.btn2.addTarget(self, action: #selector(self.can(_:)), for: .touchUpInside)
cell.selectionStyle = .none
}