*/ 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:----OTMxNTc3MDM4NDI5ODY1IDU1MDYyNzQwODk3MjE4OTIgMzA3OTEzNDU3NTIwOTI4OA==