text: //
  //  NSData+SHA.h
  //  JSONWebToken
  //
  //  Created by Antoine Palazzolo on 19/11/15.
  //
  
  #import <Foundation/Foundation.h>
  
  @interface NSData (SHA)
  - (NSData * _Nonnull)jwt_shaDigestWithSize:(NSInteger)functionSize;
  @end
  