text: //
  //  UIViewController+GTUIDialogs.h
  //  GTCatalog
  //
  //  Created by liuxc on 2018/11/22.
  //
  
  #import <UIKit/UIKit.h>
  
  @class GTUIDialogPresentationController;
  
  @interface UIViewController (GTUIDialogs)
  
  /**
   The dialog presentation controller that is managing the current view controller.
  
   @return nil if the view controller is not managed by a Material dialog presentaiton controller.
   */
  @property(nonatomic, nullable, readonly) GTUIDialogPresentationController *gtui_dialogPresentationController;
  
  @end
  