     */
     public func responseJSON(_ method: Alamofire.HTTPMethod,
         _ url: URLConvertible,
-        parameters: [String: AnyObject]? = nil,
+        parameters: [String: Any]? = nil,
         encoding: ParameterEncoding = URLEncoding.default,
         headers: [String: String]? = nil
     )

 */
public func json(_ method: Alamofire.HTTPMethod,
    _ url: URLConvertible,
    parameters: [String: AnyObject]? = nil,
    encoding: ParameterEncoding = URLEncoding.default,
    headers: [String: String]? = nil)
    -> Observable<Any>

*/
public func requestJSON(_ method: Alamofire.HTTPMethod,
    _ url: URLConvertible,
    parameters: [String: Any]? = nil,
    encoding: ParameterEncoding = URLEncoding.default,
    headers: [String: String]? = nil)
    -> Observable<(HTTPURLResponse, Any)>
