 public let fnAttributeName = "attributeKey"
 public let fnRangeName = "rangeKey"
 
-public extension NSDictionary {
+extension NSDictionary {
     /**
      Create an attribute texts dictionary, like the NSAttributedString.
      

private var flickerNumberFormatterKey : Void?
private var flickerTimerKey : Void?

public extension UILabel {
    /// The intermediate number, it's private variable. Extend property use the runtime feature.
    public var fn_number: NSNumber? {
        get {

            return
        }
        
        //limit duration is positive number and it is larger than 0.3
        var durationTime : TimeInterval = Swift.max(fabs(duration), 0.3)
        
        self.fn_timer?.invalidate()
        
