text: #import <Flutter/Flutter.h>
  #import <WebKit/WebKit.h>
  
  static FlutterMethodChannel *channel;
  
  @interface FlutterWebviewPlugin : NSObject <FlutterPlugin>
  @property(nonatomic, retain) UIViewController *viewController;
  @property(nonatomic, retain) WKWebView *webview;
  @property(nonatomic, retain) NSMutableArray *webviews;
  @property(nonatomic, retain) UIScrollView *scrollview;
  @end
  