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Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.32, 8.2.0 - 8.2.28, 8.3.0 - 8.3.20, 8.4.1 - 8.4.6
bool(true) bool(true) bool(false) bool(false) Fatal error: Uncaught BadMethodCallException: CachingIterator does not use a full cache (see CachingIterator::__construct) in /in/a0Uc7:26 Stack trace: #0 /in/a0Uc7(26): CachingIterator->getCache() #1 {main} thrown in /in/a0Uc7 on line 26
Process exited with code 255.

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