*/ 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:----NDIyNzk4MTI4NjQ3NjYzMyA4MjQ0MzE1NTc3MTMzNzQ0IDYyNjg4MjgxMzM1NzM1Nw==