text: #import <Foundation/Foundation.h>
  #import <UIKit/UIKit.h>
  
  typedef NS_ENUM(NSInteger, FFFPriority) {
      FFFPriorityLow,
      FFFPriorityNormal,
      FFFPriorityHigh
  };
  
  typedef NS_ENUM(NSInteger, FFFCacheControl) {
      FFFCacheControlImmutable,
      FFFCacheControlWeb,
      FFFCacheControlCacheOnly
  };
  
  // Object containing an image uri and metadata.
  @interface FFSuperFastImageSource : NSObject
  
  // uri for image, or base64
  @property (nonatomic) NSURL* url;
  // priority for image request
  @property (nonatomic) FFFPriority priority;
  // headers for the image request
  @property (nonatomic) NSDictionary *headers;
  // cache control mode
  @property (nonatomic) FFFCacheControl cacheControl;
  
  - (instancetype)initWithURL:(NSURL *)url
                     priority:(FFFPriority)priority
                      headers:(NSDictionary *)headers
                 cacheControl:(FFFCacheControl)cacheControl;
  
  @end
  