Swizzle Tap Gesture Action in iOS Cocoa Touch Framework

Question

I am developing an Cocoa Touch Framework or a dynamic Library which would capture user actions using Swift.

E.g. When a user taps on a label, my framework should know about it. For achieving this behaviour, I am using method swizzling.

I am creating an extension for the UITapGestureRecognizer.In this extension, in initialize method , I am swizzling the init :

open override class func initialize() {
    guard self === UITapGestureRecognizer.self else { return }

    let originalSelector = #selector(self.init(target:action:))
    let swizzledSelector = #selector(swizzled_init(target:action:))
    swizzling(self, originalSelector, swizzledSelector)
}

func swizzled_init(target: Any, action: Selector) {
    swizzled_init(target : target,action: action)
    print("swizzled_init"+action.description)

//This part is for swizzling the the action which is being provided by the developer at the time of init.

    guard self === UITapGestureRecognizer.self else { return }
    let originalSelector = action
    let swizzledSelector = #selector(swizzled_action(sender:))
    swizzling(self.classForCoder, originalSelector, swizzledSelector)
}

func swizzled_action(sender : UITapGestureRecognizer? = nil){
    print("swizzled_action"+(sender?.description)!)
} 

After swizzling init, the instance of tap is nil in my ViewController.

    let tap = UITapGestureRecognizer.init(target: self, action: #selector(buttonTapped(sender:)))

And the second issue is this in the swizzled_init method:

guard self === UITapGestureRecognizer.self else { return }

which is getting failed.

Could you please direct me in resolving these issues?