UIStoryboard+Extension

import Foundation
import UIKit

struct StoryboardIdentifiers {
    static let ViewController1 = "ViewController1"
    static let ViewController2 = "ViewController2"
    static let ViewController3 = "ViewController3"
    static let ViewController4 = "ViewController4"
    static let ViewController5 = "ViewController5"
    static let ViewController6 = "ViewController6"
    static let ViewController7 = "ViewController7"
}
struct Storyboards {
    static let Main = UIStoryboard.init(name: "Main", bundle: nil)
}
extension UIStoryboard {
    func loadInstance(with identifier:String)->BaseViewController {
        return self.instantiateViewController(withIdentifier: identifier) as! BaseViewController
    }
}