text: //
  //  DoubleNavigationControllerProtocol.h
  //  DoubleNavigationController
  //
  //  Created by Yao Li on 2018/11/13.
  //
  
  #import <UIKit/UIKit.h>
  
  @protocol DoubleNavigationControllerProtocol <NSObject>
  @optional
  - (void)dbn_configNavigationController:(UINavigationController *)navigationController;
  - (void)dbn_configNavigationItem:(UINavigationItem *)navigationItem;
  @end
  