      - date: February 17, 2016
      */
     @discardableResult
-    class func addVisualFormatConstraints(_ format: String, metrics: [String: Any]? = nil, views: [String: Any]) -> [NSLayoutConstraint] {
+    class func addVisualFormatConstraints(_ format: String, metrics: LayoutDictionary? = nil, views: LayoutDictionary) -> [NSLayoutConstraint] {
         let options = NSLayoutFormatOptions(rawValue: 0)
         let constraints = NSLayoutConstraint.constraints(withVisualFormat: format, options: options, metrics: metrics, views: views)
 

     - date: February 17, 2016
     */
    @discardableResult
    func addVisualFormatConstraints(_ format: String, metrics: [String: Any]? = nil) -> [NSLayoutConstraint] {
        let views = ["view": self]
        return UIView.addVisualFormatConstraints(format, metrics: metrics, views: views)
    }

//

import Foundation

public typealias LayoutDictionary = [String: Any]

/**
 Auto Layout and general utility methods for `UIView`.
