- (id)copyWithZone:(NSZone *)zone
{
    RestEntity *copy = [[[self class] allocWithZone:zone] init];
    copy.dishId = _dishId;
    return copy;
}

- (id)mutableCopyWithZone:(NSZone *)zone
{
    RestEntity *copy = [RestEntity allocWithZone:zone];
    copy.dishId = _dishId;
    return copy;
}

NSObject <NSCopying,NSMutableCopying>