iOS: How to user a specific function from my swift class in objective C? `Use of undeclared identifier 'NetworkClient'`

I use this code in Swift that works well, but impossible to call it in Objective C.

import Foundation
import Alamofire


enum Router: URLRequestConvertible {
  case users

  static let baseURLString = "https://api.stackexchange.com/2.2"

  func asURLRequest() throws -> URLRequest {
    let path: String
    switch self {
    case .users:
      path = "/users?order=desc&sort=reputation&site=stackoverflow&max=10"
    }

    let url = URL(string: Router.baseURLString + path)!
    return URLRequest(url: url)
  }
}

@objcMembers public final class NetworkClient {
  // 1
  let evaluators = [
    "api.stackexchange.com":
      PinnedCertificatesTrustEvaluator(certificates: [
        Certificates.stackExchange
        ])
  ]

  let session: Session

  // 2
  private init() {
    session = Session(
      serverTrustManager: ServerTrustManager(evaluators: evaluators)
    )
  } ...

I use it like this under Swift :

 NetworkClient.request(Router.users)
      .responseDecodable { (response: DataResponse<UserList>) in
        switch response.result {
        case .success(let value):
          self.users = value.users
        case .failure(let error):
          let isServerTrustEvaluationError =
            error.asAFError?.isServerTrustEvaluationError ?? false
          let message: String
          if isServerTrustEvaluationError {
            message = "Certificate Pinning Error"
          } else {
            message = error.localizedDescription
          }
          self.presentError(withTitle: "Oops!", message: message)
        }
      }

I tried this under Objective C with no success:

NetworkClient.request.responseDecodable()
    {

    }

The error message is: Use of undeclared identifier 'NetworkClient'

• I added the #import myapp-Swift.h correctly
• I added @objcMembers but I don't know if it is the right way to do it.

Any ideas? Thanks in advance.

You need your Swift class to inherit from NSObject for it to be visible to Objective-C.

public final class NetworkClient: NSObject {
   // ...
}