/**
 * https://api.flutter.dev/flutter/foundation/Key-class.html
 */ export class Key { readonly value : string ; /**
     * https://api.flutter.dev/flutter/foundation/Key/Key.html
     */ constructor ( value ) { this . value = value ; } /**
     * https://api.flutter.dev/flutter/foundation/Key/Key.empty.html
     */ static empty ( ) { } }