*/ abstract class SolverOperation implements OperationInterface { /** @abstract must be redefined by extending classes */ protected const TYPE = ''; /** * Returns operation type. */ public function getOperationType(): string { return static::TYPE; } /** * @inheritDoc */ public function __toString() { return $this->show(false); } } __halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NjA2MjI2Njc0ODg4OTM5MiAxOTA1OTIxNTI1MzA4NzggNDMxMzg3ODYyNTI2MjY5OA==