public function __construct($operand = null, $operator = null, $OperationType = null)
 {
     parent::__construct();
     $this->operand = $operand;
     $this->operator = $operator;
     $this->OperationType = $OperationType;
 }
 public function __construct($operand = null, $exemptionRequests = null, $operator = null, $OperationType = null)
 {
     parent::__construct();
     $this->operand = $operand;
     $this->exemptionRequests = $exemptionRequests;
     $this->operator = $operator;
     $this->OperationType = $OperationType;
 }