JSONSerialization how to check for bool type

gistfile1.txt

import UIKit
import Foundation

let string = "{\"bool\" : true, \"int\": 1 }"
let json = try! JSONSerialization.jsonObject(with: string.data(using: .utf8)!, options: [])

if let dict = json as? [String: Any] {
    dict["bool"] is NSNumber
    dict["int"] is NSNumber
    
    dict["bool"] is Bool
    dict["int"] is Bool
    
    type(of: dict["bool"]! )
    type(of: dict["int"]! )
    
    String(describing: type(of: dict["bool"]!) )
    String(describing: type(of: dict["int"]!) )
    
    String(describing: dict["bool"]! )
    String(describing: dict["int"]! )
}