我正在保存所有数据，代码是在单独的类中编写的。它显示一个错误，即无法将“Int”类型的值转换为预期的参数类型“String”。请帮我解决这个问题。
以下是我保存所有数据的类：
class FetchedLocations
{
var id: Int
var companyID: Int
var username: String
var name: String
var imei: String
var created_at: String
var updated_at: String
var module_id: Int
var location_address: String?
var guard_name: String?
var guard_contact: String?
var device: Int?
var expire_on: Int?
var status: Int
init(id: Int, companyID: Int, username: String, name: String, imei: String, created_at: String, updated_at: String, module_id: Int, location_address: String, guard_name: String, guard_contact: String, device: Int, expire_on: Int, status: Int) {
self.id = id
self.companyID …