swift - 无法调用非函数类型的值 'SessionManager'

Question

我正在尝试将其他人的代码迁移到 Swift 3。一切都很顺利，除了一行我无法弄清楚。它在 Swift 2.2 中工作正常，但在 Swift 3 中无法编译。它返回错误:

Cannot call value of non-function type 'SessionManager'

import Alamofire

struct AlamofireAPIManager {
    static let sharedManager: SessionManager = {
        let configuration = URLSessionConfiguration.default
        configuration.timeoutIntervalForRequest = 360 // 120 seconds
        configuration.timeoutIntervalForResource = 360
        return SessionManager(configuration: configuration)
    }()
}

.
.
.

override init() {
    let configuration = URLSessionConfiguration.default
    configuration.timeoutIntervalForRequest = 360
    configuration.timeoutIntervalForResource = 360 // seconds

    self.alamofireManager = AlamofireAPIManager.sharedManager(configuration)
}

有问题的行是:

self.alamofireManager = AlamofireAPIManager.sharedManager(configuration)

如果我将其更改为:

self.alamofireManager = AlamofireAPIManager.init()

它将编译，但应用程序无法正常工作。

您知道他在这里想做什么，以及应该如何将其迁移到 Swift 3？谢谢。

** 编辑:这是任何迁移之前的原始代码:

import Alamofire

struct AlamofireAPIManager {
    static let sharedManager: Manager = {
        let configuration = NSURLSessionConfiguration.defaultSessionConfiguration()
        configuration.timeoutIntervalForRequest = 360 // 120 seconds
        configuration.timeoutIntervalForResource = 360
        return Manager(configuration: configuration)
    }()
}

.
.
. 

let configuration = NSURLSessionConfiguration.defaultSessionConfiguration()
configuration.timeoutIntervalForRequest = 360
configuration.timeoutIntervalForResource = 360 // seconds

self.alamofireManager = Alamofire.Manager(configuration: configuration)

Answer 1

正在编译:

import AlamoFire

struct AlamofireAPIManager {
    static let sharedManager: SessionManager = {
        let configuration = URLSessionConfiguration.default
        configuration.timeoutIntervalForRequest = 360 // 120 seconds
        configuration.timeoutIntervalForResource = 360
        return SessionManager(configuration: configuration)
    }()
}

func i() {
    let alamofireManager = AlamofireAPIManager.sharedManager
}