text: #import <Foundation/Foundation.h>
  
  NS_ASSUME_NONNULL_BEGIN
  
  @interface NSURLProtocolSwizzle : NSObject
  
  typedef void (^ClassCallback)(Class _Nullable callbackClass);
  
  @property (class, nonatomic, readonly) NSURLProtocolSwizzle *shared;
  
  @property (nullable, nonatomic, strong) ClassCallback registerCallback;
  
  @property (nullable, nonatomic, strong) ClassCallback unregisterCallback;
  
  + (void)swizzleURLProtocol;
  
  @end
  
  NS_ASSUME_NONNULL_END
  