Implement CacheItemPoolInterface #833
Description
orm 3 requires caches to be of type Psr\Cache\CacheItemPoolInterface
https://www.php-fig.org/psr/psr-6/#cacheitempoolinterface
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orm 3 requires caches to be of type Psr\Cache\CacheItemPoolInterface
https://www.php-fig.org/psr/psr-6/#cacheitempoolinterface