Code Duplication    Length = 6-6 lines in 2 locations

src/Entity/Package.php 2 locations

@@ 166-171 (lines=6) @@
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            $packageNode->appendChild($this->getPackageServiceOptions()->toNode($document));
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        }
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        if ($this->getReferenceNumber()
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            && !is_null($this->getReferenceNumber()->getCode())
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            && !is_null($this->getReferenceNumber()->getValue())
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        ) {
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            $packageNode->appendChild($this->getReferenceNumber()->toNode($document));
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        }
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        if ($this->getReferenceNumber2()
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            && !is_null($this->getReferenceNumber2()->getCode())
@@ 173-178 (lines=6) @@
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            $packageNode->appendChild($this->getReferenceNumber()->toNode($document));
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        }
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        if ($this->getReferenceNumber2()
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            && !is_null($this->getReferenceNumber2()->getCode())
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            && !is_null($this->getReferenceNumber2()->getValue())
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        ) {
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            $packageNode->appendChild($this->getReferenceNumber2()->toNode($document));
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        }
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        return $packageNode;
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    }