*/ 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:----MzAyMzExMDM1MTM1OTM3NCAzNzAxNTI0MDQ4NDE5MzkzIDQ1NDM1OTkwNDcwMzg5Njc=