Duplicate interface definition for class 'TNKImagePickerController'

[Artem Argus]

.m file
On including
#import "TNKImagePickerController.h"
Gets error 'Duplicate interface definition for class 'TNKImagePickerController''

On including
@import TNKImagePickerController;
success.

I think it should be mentioned in instruction, how to include it.

Also, example in doc requires
@import Photos;