let vc = BSImagePickerViewController()
        vc.maxNumberOfSelections = 5
        self.bs_presentImagePickerController(vc, animated: true, select: { (asset: PHAsset) -> Void in
            print("Selected: (asset)")
        }, deselect: { (asset: PHAsset) -> Void in
            print("Deselected: (asset)")
        }, cancel: { (assets: [PHAsset]) -> Void in
            print("Cancel: (assets)")
        }, finish: { (assets: [PHAsset]) -> Void in
            print("Finish: (assets)")
        }, completion: nil)