*/ 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:----Njg3OTI1MTYzMTcyMDYxOCAyNzQ4NzgwOTgxNDc0ODU1IDU4ODU2Nzg3NzYxODY2MzI=