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@implementation NSDictionary (VerifiedObjectForKey)

- (id)verifiedObjectForKey:(id)aKey
{
    if ([self objectForKey:aKey] && ![[self objectForKey:aKey] isKindOfClass:[NSNull class]])
    {
        return [self objectForKey:aKey];
    }
    
    return nil;
}

@end

@interface NSDictionary (VerifiedObjectForKey)

-(id)verifiedObjectForKey:(id)aKey;

@end