对成员追加的引用不明确

我正在使用从服务器获取数据并将其存储到数组（arryGetServices）的API，数组的类型为GetServicesModel。 GetServicesModel是JSON数据的模型，并存储到另一个swift文件（GetServicesModel.swift）中，但显示一个错误（对成员'append'的引用不明确）。请帮助我删除该错误。

谢谢你的这种act

\\ Append Data Array 
var arryGetServices = [GetServicesModel]()

AF.request(url, method: .post, parameters: parameters).validate().responseJSON { response in

           switch response.result {
           case .success:
               if let result = response.data {
                   do {

                       let resultIs = try JSONDecoder().decode(GetStuffModel.self, from:result)
                       //CommonMethods.hideCustomActivityIndicator(controller: self)
                       CommenMethods.customActivityIndicatory(self.view, startAnimate: false)

                       if let results = resultIs.data {
                           for data in results {

                               self.arryGetServices.append(data) // Error: Ambiguous reference to member 'append'

                               print("This Data is getServicesApiCall .  \(data)")

                           }

                           self.myServiceCV.reloadData()
                       }
                   } catch {
                       print(error)
                       //CommonMethods.hideCustomActivityIndicator(controller: self)
                       CommenMethods.customActivityIndicatory(self.view, startAnimate: false)
                   }

//This is the Data Model

import Foundation
struct GetServicesModel : Codable {
    let status : Int?
    let message : String?
    let data : String?

    enum CodingKeys: String, CodingKey {

        case status = "status"
        case message = "message"
        case data = "data"
    }

}```