text: //
  //  NSDictionary+ext.h
  //  flutter_cicadaplayer
  //
  //  Created by aliyun on 2020/11/27.
  //
  
  #import <Foundation/Foundation.h>
  
  NS_ASSUME_NONNULL_BEGIN
  
  @interface NSDictionary (ext)
  
  - (NSDictionary *)removeNull;
  
  - (id)getStrByKey:(NSString *)key;
  
  @end
  
  NS_ASSUME_NONNULL_END
  