如何在Moya中通过URLRequest

import Moya

enum MyAPI {
    case login(username: String, password: String)
}

extension MyAPI: TargetType {
    var baseURL: URL {
        return URL(string: "https://api.example.com")!
    }
    
    var path: String {
        switch self {
        case .login:
            return "/login"
        }
    }
    
    var method: Moya.Method {
        switch self {
        case .login:
            return .post
        }
    }
    
    var task: Task {
        switch self {
        case let .login(username, password):
            return .requestParameters(parameters: ["username": username, "password": password], encoding: JSONEncoding.default)
        }
    }
    
    var headers: [String: String]? {
        return ["Content-Type": "application/json"]
    }
}

let provider = MoyaProvider<MyAPI>()

provider.request(.login(username: "example", password: "password")) { result in
    switch result {
    case let .success(response):
        // 处理成功响应
        let data = response.data
        // 解析数据...
    case let .failure(error):
        // 处理错误
        print(error)
    }
}