Quick fix for enumerateValues(forProperties: block:) returning value as type Any instead of Any? (as a Category on MPMediaItem)

MPMediaItemEnumerateValuesNullabilityFix.h

//
//  MPMediaItemEnumerateValuesNullabilityFix.h
//  Shuffle
//
//  Created by Stephen Heaps on 2018-02-13.
//  Copyright © 2018 Stephen Heaps. All rights reserved.
//

#import <Foundation/Foundation.h>
#import <MediaPlayer/MediaPlayer.h>

@interface MPMediaItem (FixEnumerateValues)

// Fix for value being _Nonnull instead of _Nullable. Breaks Swift compatibility. (rdar://40779720)
- (void)fixed_enumerateValuesForProperties:(NSSet<NSString *> *_Nonnull)properties
                                   using:(void (^_Nonnull)(NSString * _Nonnull property, _Nullable id value, BOOL * _Nonnull stop))block;

@end

MPMediaItemEnumerateValuesNullabilityFix.m

//
//  MPMediaItemEnumerateValuesNullabilityFix.m
//  Shuffle
//
//  Created by Stephen Heaps on 2018-02-13.
//  Copyright © 2018 Stephen Heaps. All rights reserved.
//

#import "MPMediaItemEnumerateValuesNullabilityFix.h"

@implementation MPMediaItem (FixEnumerateValues)

- (void)fixed_enumerateValuesForProperties:(NSSet<NSString *> *)properties
                                   using:(void (^)(NSString *property, _Nullable id value, BOOL *stop))block {
    
    [self enumerateValuesForProperties:properties usingBlock:^(NSString * _Nonnull property, id  _Nonnull value, BOOL * _Nonnull stop) {
        id _Nullable valueNullable = value;
        block(property, valueNullable, stop);
    }];
}

@end