
@interface NSData (ImageMIMEDetection)

/**
 Try to deduce the MIME type.

 @return string representation of detected MIME type. `nil` if not able to
 detect the MIME type.

 @see http://en.wikipedia.org/wiki/Internet_media_type
 */
- (NSString *)tdt_MIMEType;

@end


@interface NSData (ImageMIMEDetection)

@end

--- 
+++ 
@@ -1,4 +1,14 @@
 
 @interface NSData (ImageMIMEDetection)
 
+/**
+ Try to deduce the MIME type.
+
+ @return string representation of detected MIME type. `nil` if not able to
+ detect the MIME type.
+
+ @see http://en.wikipedia.org/wiki/Internet_media_type
+ */
+- (NSString *)tdt_MIMEType;
+
 @end
Add interface for the category
